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Finding the Fourth Proportional to 615.28, 922.88 and 182.40

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Solution

The fourth proportional to 615.28, 922.88 and 182.40 is: 273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.28 : 922.88 = 182.40 : x
  2. Step 2: Convert to fraction form
    615.28/922.88 = 182.40/x
  3. Step 3: Cross multiply
    615.28x = 922.88 × 182.40
  4. Step 4: Simplify right side
    615.28x = 168,333.31
  5. Step 5: Solve for x
    x = 168,333.31/615.28
  6. Step 6: Final answer
    x = 273.59

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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.