Home / 231,000-318,780-125,016

Finding the Fourth Proportional to 231,000, 318,780 and 125,016

Calculator

Solution

The fourth proportional to 231,000, 318,780 and 125,016 is: 172,522.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,000 : 318,780 = 125,016 : x
  2. Step 2: Convert to fraction form
    231,000/318,780 = 125,016/x
  3. Step 3: Cross multiply
    231,000x = 318,780 × 125,016
  4. Step 4: Simplify right side
    231,000x = 39,852,600,480
  5. Step 5: Solve for x
    x = 39,852,600,480/231,000
  6. Step 6: Final answer
    x = 172,522.08

Related Problems

Find fourth proportional to 115,500, 159,390 and 62,508
Half scale
Find fourth proportional to 462,000, 637,560 and 250,032
Double scale
Find fourth proportional to 231,001, 318,781.38 and 125,017
Similar ratio
Find fourth proportional to 346,500, 478,170 and 187,524
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.