Home / 521,002.20-781,503.30-166,042.20

Finding the Fourth Proportional to 521,002.20, 781,503.30 and 166,042.20

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Solution

The fourth proportional to 521,002.20, 781,503.30 and 166,042.20 is: 249,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,002.20 : 781,503.30 = 166,042.20 : x
  2. Step 2: Convert to fraction form
    521,002.20/781,503.30 = 166,042.20/x
  3. Step 3: Cross multiply
    521,002.20x = 781,503.30 × 166,042.20
  4. Step 4: Simplify right side
    521,002.20x = 129,762,527,239.26
  5. Step 5: Solve for x
    x = 129,762,527,239.26/521,002.20
  6. Step 6: Final answer
    x = 249,063.30

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Similar ratio
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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.