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Finding the Fourth Proportional to 248.61, 372.90 and 94.53

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Solution

The fourth proportional to 248.61, 372.90 and 94.53 is: 141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.61 : 372.90 = 94.53 : x
  2. Step 2: Convert to fraction form
    248.61/372.90 = 94.53/x
  3. Step 3: Cross multiply
    248.61x = 372.90 × 94.53
  4. Step 4: Simplify right side
    248.61x = 35,248.84
  5. Step 5: Solve for x
    x = 35,248.84/248.61
  6. Step 6: Final answer
    x = 141.78

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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.