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Finding the Fourth Proportional to 249.18, 371.99 and 240.64

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Solution

The fourth proportional to 249.18, 371.99 and 240.64 is: 359.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.18 : 371.99 = 240.64 : x
  2. Step 2: Convert to fraction form
    249.18/371.99 = 240.64/x
  3. Step 3: Cross multiply
    249.18x = 371.99 × 240.64
  4. Step 4: Simplify right side
    249.18x = 89,515.67
  5. Step 5: Solve for x
    x = 89,515.67/249.18
  6. Step 6: Final answer
    x = 359.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.