Home / 521,010.18-781,507.04-166,019.12

Finding the Fourth Proportional to 521,010.18, 781,507.04 and 166,019.12

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Solution

The fourth proportional to 521,010.18, 781,507.04 and 166,019.12 is: 249,026.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,010.18 : 781,507.04 = 166,019.12 : x
  2. Step 2: Convert to fraction form
    521,010.18/781,507.04 = 166,019.12/x
  3. Step 3: Cross multiply
    521,010.18x = 781,507.04 × 166,019.12
  4. Step 4: Simplify right side
    521,010.18x = 129,745,106,316.97
  5. Step 5: Solve for x
    x = 129,745,106,316.97/521,010.18
  6. Step 6: Final answer
    x = 249,026.05

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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.