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Finding the Fourth Proportional to 607.38, 911.10 and 174.57

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Solution

The fourth proportional to 607.38, 911.10 and 174.57 is: 261.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.38 : 911.10 = 174.57 : x
  2. Step 2: Convert to fraction form
    607.38/911.10 = 174.57/x
  3. Step 3: Cross multiply
    607.38x = 911.10 × 174.57
  4. Step 4: Simplify right side
    607.38x = 159,050.73
  5. Step 5: Solve for x
    x = 159,050.73/607.38
  6. Step 6: Final answer
    x = 261.86

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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.