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Finding the Fourth Proportional to 629.40, 944.16 and 167.17

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Solution

The fourth proportional to 629.40, 944.16 and 167.17 is: 250.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.40 : 944.16 = 167.17 : x
  2. Step 2: Convert to fraction form
    629.40/944.16 = 167.17/x
  3. Step 3: Cross multiply
    629.40x = 944.16 × 167.17
  4. Step 4: Simplify right side
    629.40x = 157,835.78
  5. Step 5: Solve for x
    x = 157,835.78/629.40
  6. Step 6: Final answer
    x = 250.77

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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.