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Finding the Fourth Proportional to 242.95, 337.52 and 240.70

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Solution

The fourth proportional to 242.95, 337.52 and 240.70 is: 334.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.95 : 337.52 = 240.70 : x
  2. Step 2: Convert to fraction form
    242.95/337.52 = 240.70/x
  3. Step 3: Cross multiply
    242.95x = 337.52 × 240.70
  4. Step 4: Simplify right side
    242.95x = 81,241.06
  5. Step 5: Solve for x
    x = 81,241.06/242.95
  6. Step 6: Final answer
    x = 334.39

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.