Home / 271,565.80-407,185.06-121,779

Finding the Fourth Proportional to 271,565.80, 407,185.06 and 121,779

Calculator

Solution

The fourth proportional to 271,565.80, 407,185.06 and 121,779 is: 182,595.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,565.80 : 407,185.06 = 121,779 : x
  2. Step 2: Convert to fraction form
    271,565.80/407,185.06 = 121,779/x
  3. Step 3: Cross multiply
    271,565.80x = 407,185.06 × 121,779
  4. Step 4: Simplify right side
    271,565.80x = 49,586,589,421.74
  5. Step 5: Solve for x
    x = 49,586,589,421.74/271,565.80
  6. Step 6: Final answer
    x = 182,595.12

Related Problems

Find fourth proportional to 135,782.90, 203,592.53 and 60,889.50
Half scale
Find fourth proportional to 543,131.60, 814,370.12 and 243,558
Double scale
Find fourth proportional to 271,566.80, 407,186.56 and 121,780
Similar ratio
Find fourth proportional to 407,348.70, 610,777.59 and 182,668.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.