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Finding the Fourth Proportional to 528,003.38, 791,965.28 and 168,159.71

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Solution

The fourth proportional to 528,003.38, 791,965.28 and 168,159.71 is: 252,226.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,003.38 : 791,965.28 = 168,159.71 : x
  2. Step 2: Convert to fraction form
    528,003.38/791,965.28 = 168,159.71/x
  3. Step 3: Cross multiply
    528,003.38x = 791,965.28 × 168,159.71
  4. Step 4: Simplify right side
    528,003.38x = 133,176,654,215.18
  5. Step 5: Solve for x
    x = 133,176,654,215.18/528,003.38
  6. Step 6: Final answer
    x = 252,226.90

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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.