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Finding the Fourth Proportional to 445,951.89, 615,414.02 and 254,969.28

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Solution

The fourth proportional to 445,951.89, 615,414.02 and 254,969.28 is: 351,857.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,951.89 : 615,414.02 = 254,969.28 : x
  2. Step 2: Convert to fraction form
    445,951.89/615,414.02 = 254,969.28/x
  3. Step 3: Cross multiply
    445,951.89x = 615,414.02 × 254,969.28
  4. Step 4: Simplify right side
    445,951.89x = 156,911,668,306.46
  5. Step 5: Solve for x
    x = 156,911,668,306.46/445,951.89
  6. Step 6: Final answer
    x = 351,857.84

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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.