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Finding the Fourth Proportional to 615.97, 922.56 and 372.25

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Solution

The fourth proportional to 615.97, 922.56 and 372.25 is: 557.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.97 : 922.56 = 372.25 : x
  2. Step 2: Convert to fraction form
    615.97/922.56 = 372.25/x
  3. Step 3: Cross multiply
    615.97x = 922.56 × 372.25
  4. Step 4: Simplify right side
    615.97x = 343,422.96
  5. Step 5: Solve for x
    x = 343,422.96/615.97
  6. Step 6: Final answer
    x = 557.53

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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.