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Finding the Fourth Proportional to 249.28, 373.99 and 95.21

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Solution

The fourth proportional to 249.28, 373.99 and 95.21 is: 142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.28 : 373.99 = 95.21 : x
  2. Step 2: Convert to fraction form
    249.28/373.99 = 95.21/x
  3. Step 3: Cross multiply
    249.28x = 373.99 × 95.21
  4. Step 4: Simplify right side
    249.28x = 35,607.59
  5. Step 5: Solve for x
    x = 35,607.59/249.28
  6. Step 6: Final answer
    x = 142.84

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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.