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Finding the Fourth Proportional to 226,691.60, 340,056.40 and 68,921.42

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Solution

The fourth proportional to 226,691.60, 340,056.40 and 68,921.42 is: 103,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,691.60 : 340,056.40 = 68,921.42 : x
  2. Step 2: Convert to fraction form
    226,691.60/340,056.40 = 68,921.42/x
  3. Step 3: Cross multiply
    226,691.60x = 340,056.40 × 68,921.42
  4. Step 4: Simplify right side
    226,691.60x = 23,437,169,968.09
  5. Step 5: Solve for x
    x = 23,437,169,968.09/226,691.60
  6. Step 6: Final answer
    x = 103,387.91

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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.