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Finding the Fourth Proportional to 615.92, 923.50 and 204.95

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Solution

The fourth proportional to 615.92, 923.50 and 204.95 is: 307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.92 : 923.50 = 204.95 : x
  2. Step 2: Convert to fraction form
    615.92/923.50 = 204.95/x
  3. Step 3: Cross multiply
    615.92x = 923.50 × 204.95
  4. Step 4: Simplify right side
    615.92x = 189,273.12
  5. Step 5: Solve for x
    x = 189,273.12/615.92
  6. Step 6: Final answer
    x = 307.30

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Find fourth proportional to 307.96, 461.75 and 102.48
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Double scale
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Similar ratio
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1.5x scale

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.