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Finding the Fourth Proportional to 240.93, 332.51 and 142.70

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Solution

The fourth proportional to 240.93, 332.51 and 142.70 is: 196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.93 : 332.51 = 142.70 : x
  2. Step 2: Convert to fraction form
    240.93/332.51 = 142.70/x
  3. Step 3: Cross multiply
    240.93x = 332.51 × 142.70
  4. Step 4: Simplify right side
    240.93x = 47,446.80
  5. Step 5: Solve for x
    x = 47,446.80/240.93
  6. Step 6: Final answer
    x = 196.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.