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Finding the Fourth Proportional to 615.06, 922.80 and 204.18

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Solution

The fourth proportional to 615.06, 922.80 and 204.18 is: 306.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.06 : 922.80 = 204.18 : x
  2. Step 2: Convert to fraction form
    615.06/922.80 = 204.18/x
  3. Step 3: Cross multiply
    615.06x = 922.80 × 204.18
  4. Step 4: Simplify right side
    615.06x = 188,417.30
  5. Step 5: Solve for x
    x = 188,417.30/615.06
  6. Step 6: Final answer
    x = 306.34

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Double scale
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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.