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Finding the Fourth Proportional to 499.39, 748.51 and 249.10

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Solution

The fourth proportional to 499.39, 748.51 and 249.10 is: 373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.39 : 748.51 = 249.10 : x
  2. Step 2: Convert to fraction form
    499.39/748.51 = 249.10/x
  3. Step 3: Cross multiply
    499.39x = 748.51 × 249.10
  4. Step 4: Simplify right side
    499.39x = 186,453.84
  5. Step 5: Solve for x
    x = 186,453.84/499.39
  6. Step 6: Final answer
    x = 373.36

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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.