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Finding the Fourth Proportional to 496.10, 744.15 and 130.92

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Solution

The fourth proportional to 496.10, 744.15 and 130.92 is: 196.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.10 : 744.15 = 130.92 : x
  2. Step 2: Convert to fraction form
    496.10/744.15 = 130.92/x
  3. Step 3: Cross multiply
    496.10x = 744.15 × 130.92
  4. Step 4: Simplify right side
    496.10x = 97,424.12
  5. Step 5: Solve for x
    x = 97,424.12/496.10
  6. Step 6: Final answer
    x = 196.38

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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.