Home / 521,131.20-781,170.54-250,862.40

Finding the Fourth Proportional to 521,131.20, 781,170.54 and 250,862.40

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Solution

The fourth proportional to 521,131.20, 781,170.54 and 250,862.40 is: 376,040.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,131.20 : 781,170.54 = 250,862.40 : x
  2. Step 2: Convert to fraction form
    521,131.20/781,170.54 = 250,862.40/x
  3. Step 3: Cross multiply
    521,131.20x = 781,170.54 × 250,862.40
  4. Step 4: Simplify right side
    521,131.20x = 195,966,316,473.70
  5. Step 5: Solve for x
    x = 195,966,316,473.70/521,131.20
  6. Step 6: Final answer
    x = 376,040.27

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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.