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Finding the Fourth Proportional to 361,167.90, 498,494.64 and 240,314.28

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Solution

The fourth proportional to 361,167.90, 498,494.64 and 240,314.28 is: 331,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,167.90 : 498,494.64 = 240,314.28 : x
  2. Step 2: Convert to fraction form
    361,167.90/498,494.64 = 240,314.28/x
  3. Step 3: Cross multiply
    361,167.90x = 498,494.64 × 240,314.28
  4. Step 4: Simplify right side
    361,167.90x = 119,795,380,495.46
  5. Step 5: Solve for x
    x = 119,795,380,495.46/361,167.90
  6. Step 6: Final answer
    x = 331,688.89

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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.