Home / 521,006.20-781,509.30-166,046.20

Finding the Fourth Proportional to 521,006.20, 781,509.30 and 166,046.20

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Solution

The fourth proportional to 521,006.20, 781,509.30 and 166,046.20 is: 249,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,006.20 : 781,509.30 = 166,046.20 : x
  2. Step 2: Convert to fraction form
    521,006.20/781,509.30 = 166,046.20/x
  3. Step 3: Cross multiply
    521,006.20x = 781,509.30 × 166,046.20
  4. Step 4: Simplify right side
    521,006.20x = 129,766,649,529.66
  5. Step 5: Solve for x
    x = 129,766,649,529.66/521,006.20
  6. Step 6: Final answer
    x = 249,069.30

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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.