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Finding the Fourth Proportional to 500.76, 751.20 and 167.22

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Solution

The fourth proportional to 500.76, 751.20 and 167.22 is: 250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.76 : 751.20 = 167.22 : x
  2. Step 2: Convert to fraction form
    500.76/751.20 = 167.22/x
  3. Step 3: Cross multiply
    500.76x = 751.20 × 167.22
  4. Step 4: Simplify right side
    500.76x = 125,615.66
  5. Step 5: Solve for x
    x = 125,615.66/500.76
  6. Step 6: Final answer
    x = 250.85

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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.