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Finding the Third Proportional to 141.50 and 254.88

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Solution

The third proportional to 141.50 and 254.88 is: 459.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.50 : 254.88 = 254.88 : x
  2. Step 2: Convert to fraction form
    141.50/254.88 = 254.88/x
  3. Step 3: Cross multiply
    141.50x = 254.88 × 254.88
  4. Step 4: Simplify right side
    141.50x = 64,961.27
  5. Step 5: Solve for x
    x = 64,961.27/141.50
  6. Step 6: Final answer
    x = 459.09

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.