Home / 318,733.80-478,101.02-82,077

Finding the Fourth Proportional to 318,733.80, 478,101.02 and 82,077

Calculator

Solution

The fourth proportional to 318,733.80, 478,101.02 and 82,077 is: 123,115.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,733.80 : 478,101.02 = 82,077 : x
  2. Step 2: Convert to fraction form
    318,733.80/478,101.02 = 82,077/x
  3. Step 3: Cross multiply
    318,733.80x = 478,101.02 × 82,077
  4. Step 4: Simplify right side
    318,733.80x = 39,241,097,418.54
  5. Step 5: Solve for x
    x = 39,241,097,418.54/318,733.80
  6. Step 6: Final answer
    x = 123,115.58

Related Problems

Find fourth proportional to 159,366.90, 239,050.51 and 41,038.50
Half scale
Find fourth proportional to 637,467.60, 956,202.04 and 164,154
Double scale
Find fourth proportional to 318,734.80, 478,102.52 and 82,078
Similar ratio
Find fourth proportional to 478,100.70, 717,151.53 and 123,115.50
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.