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Finding the Fourth Proportional to 515,262.72, 773,024.88 and 160,279.40

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Solution

The fourth proportional to 515,262.72, 773,024.88 and 160,279.40 is: 240,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,262.72 : 773,024.88 = 160,279.40 : x
  2. Step 2: Convert to fraction form
    515,262.72/773,024.88 = 160,279.40/x
  3. Step 3: Cross multiply
    515,262.72x = 773,024.88 × 160,279.40
  4. Step 4: Simplify right side
    515,262.72x = 123,899,963,951.47
  5. Step 5: Solve for x
    x = 123,899,963,951.47/515,262.72
  6. Step 6: Final answer
    x = 240,459.79

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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.