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Finding the Fourth Proportional to 331,398.75, 457,330.29 and 180,495.75

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Solution

The fourth proportional to 331,398.75, 457,330.29 and 180,495.75 is: 249,084.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,398.75 : 457,330.29 = 180,495.75 : x
  2. Step 2: Convert to fraction form
    331,398.75/457,330.29 = 180,495.75/x
  3. Step 3: Cross multiply
    331,398.75x = 457,330.29 × 180,495.75
  4. Step 4: Simplify right side
    331,398.75x = 82,546,173,691.27
  5. Step 5: Solve for x
    x = 82,546,173,691.27/331,398.75
  6. Step 6: Final answer
    x = 249,084.14

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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.