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Finding the Fourth Proportional to 374,732.54, 517,299.78 and 238,949

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Solution

The fourth proportional to 374,732.54, 517,299.78 and 238,949 is: 329,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,732.54 : 517,299.78 = 238,949 : x
  2. Step 2: Convert to fraction form
    374,732.54/517,299.78 = 238,949/x
  3. Step 3: Cross multiply
    374,732.54x = 517,299.78 × 238,949
  4. Step 4: Simplify right side
    374,732.54x = 123,608,265,131.22
  5. Step 5: Solve for x
    x = 123,608,265,131.22/374,732.54
  6. Step 6: Final answer
    x = 329,857.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.