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Finding the Fourth Proportional to 445,954.88, 615,418.16 and 254,972.27

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Solution

The fourth proportional to 445,954.88, 615,418.16 and 254,972.27 is: 351,861.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,954.88 : 615,418.16 = 254,972.27 : x
  2. Step 2: Convert to fraction form
    445,954.88/615,418.16 = 254,972.27/x
  3. Step 3: Cross multiply
    445,954.88x = 615,418.16 × 254,972.27
  4. Step 4: Simplify right side
    445,954.88x = 156,914,565,518.11
  5. Step 5: Solve for x
    x = 156,914,565,518.11/445,954.88
  6. Step 6: Final answer
    x = 351,861.97

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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.