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Finding the Fourth Proportional to 501.49, 752.22 and 131.30

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Solution

The fourth proportional to 501.49, 752.22 and 131.30 is: 196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.49 : 752.22 = 131.30 : x
  2. Step 2: Convert to fraction form
    501.49/752.22 = 131.30/x
  3. Step 3: Cross multiply
    501.49x = 752.22 × 131.30
  4. Step 4: Simplify right side
    501.49x = 98,766.49
  5. Step 5: Solve for x
    x = 98,766.49/501.49
  6. Step 6: Final answer
    x = 196.95

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Double scale
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Similar ratio
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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.