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Finding the Fourth Proportional to 539,143.65, 808,577.03 and 159,974.69

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Solution

The fourth proportional to 539,143.65, 808,577.03 and 159,974.69 is: 239,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,143.65 : 808,577.03 = 159,974.69 : x
  2. Step 2: Convert to fraction form
    539,143.65/808,577.03 = 159,974.69/x
  3. Step 3: Cross multiply
    539,143.65x = 808,577.03 × 159,974.69
  4. Step 4: Simplify right side
    539,143.65x = 129,351,856,072.42
  5. Step 5: Solve for x
    x = 129,351,856,072.42/539,143.65
  6. Step 6: Final answer
    x = 239,920.95

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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.