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Finding the Fourth Proportional to 330.79, 496.18 and 125.29

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Solution

The fourth proportional to 330.79, 496.18 and 125.29 is: 187.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.79 : 496.18 = 125.29 : x
  2. Step 2: Convert to fraction form
    330.79/496.18 = 125.29/x
  3. Step 3: Cross multiply
    330.79x = 496.18 × 125.29
  4. Step 4: Simplify right side
    330.79x = 62,166.39
  5. Step 5: Solve for x
    x = 62,166.39/330.79
  6. Step 6: Final answer
    x = 187.93

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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.