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Finding the Fourth Proportional to 246,877.60, 340,691.28 and 139,447.84

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Solution

The fourth proportional to 246,877.60, 340,691.28 and 139,447.84 is: 192,438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,877.60 : 340,691.28 = 139,447.84 : x
  2. Step 2: Convert to fraction form
    246,877.60/340,691.28 = 139,447.84/x
  3. Step 3: Cross multiply
    246,877.60x = 340,691.28 × 139,447.84
  4. Step 4: Simplify right side
    246,877.60x = 47,508,663,102.84
  5. Step 5: Solve for x
    x = 47,508,663,102.84/246,877.60
  6. Step 6: Final answer
    x = 192,438.13

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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.