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Finding the Fourth Proportional to 605.68, 908.72 and 240.72

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Solution

The fourth proportional to 605.68, 908.72 and 240.72 is: 361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.68 : 908.72 = 240.72 : x
  2. Step 2: Convert to fraction form
    605.68/908.72 = 240.72/x
  3. Step 3: Cross multiply
    605.68x = 908.72 × 240.72
  4. Step 4: Simplify right side
    605.68x = 218,747.08
  5. Step 5: Solve for x
    x = 218,747.08/605.68
  6. Step 6: Final answer
    x = 361.16

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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.