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Finding the Fourth Proportional to 381,799.32, 527,448.96 and 251,284.74

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Solution

The fourth proportional to 381,799.32, 527,448.96 and 251,284.74 is: 347,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,799.32 : 527,448.96 = 251,284.74 : x
  2. Step 2: Convert to fraction form
    381,799.32/527,448.96 = 251,284.74/x
  3. Step 3: Cross multiply
    381,799.32x = 527,448.96 × 251,284.74
  4. Step 4: Simplify right side
    381,799.32x = 132,539,874,776.87
  5. Step 5: Solve for x
    x = 132,539,874,776.87/381,799.32
  6. Step 6: Final answer
    x = 347,145.39

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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.