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Finding the Fourth Proportional to 638,262.52, 957,557.82 and 238,909

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Solution

The fourth proportional to 638,262.52, 957,557.82 and 238,909 is: 358,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,262.52 : 957,557.82 = 238,909 : x
  2. Step 2: Convert to fraction form
    638,262.52/957,557.82 = 238,909/x
  3. Step 3: Cross multiply
    638,262.52x = 957,557.82 × 238,909
  4. Step 4: Simplify right side
    638,262.52x = 228,769,181,218.38
  5. Step 5: Solve for x
    x = 228,769,181,218.38/638,262.52
  6. Step 6: Final answer
    x = 358,424.90

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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.