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Finding the Fourth Proportional to 624.38, 936.56 and 168.38

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Solution

The fourth proportional to 624.38, 936.56 and 168.38 is: 252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.38 : 936.56 = 168.38 : x
  2. Step 2: Convert to fraction form
    624.38/936.56 = 168.38/x
  3. Step 3: Cross multiply
    624.38x = 936.56 × 168.38
  4. Step 4: Simplify right side
    624.38x = 157,693.71
  5. Step 5: Solve for x
    x = 157,693.71/624.38
  6. Step 6: Final answer
    x = 252.56

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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.