Home / 521,230.20-781,772.40-166,280.10

Finding the Fourth Proportional to 521,230.20, 781,772.40 and 166,280.10

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Solution

The fourth proportional to 521,230.20, 781,772.40 and 166,280.10 is: 249,396.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,230.20 : 781,772.40 = 166,280.10 : x
  2. Step 2: Convert to fraction form
    521,230.20/781,772.40 = 166,280.10/x
  3. Step 3: Cross multiply
    521,230.20x = 781,772.40 × 166,280.10
  4. Step 4: Simplify right side
    521,230.20x = 129,993,192,849.24
  5. Step 5: Solve for x
    x = 129,993,192,849.24/521,230.20
  6. Step 6: Final answer
    x = 249,396.89

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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.