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Finding the Fourth Proportional to 344,468.61, 515,732.39 and 259,960.20

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Solution

The fourth proportional to 344,468.61, 515,732.39 and 259,960.20 is: 389,207.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,468.61 : 515,732.39 = 259,960.20 : x
  2. Step 2: Convert to fraction form
    344,468.61/515,732.39 = 259,960.20/x
  3. Step 3: Cross multiply
    344,468.61x = 515,732.39 × 259,960.20
  4. Step 4: Simplify right side
    344,468.61x = 134,069,893,951.08
  5. Step 5: Solve for x
    x = 134,069,893,951.08/344,468.61
  6. Step 6: Final answer
    x = 389,207.87

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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.