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Finding the Third Proportional to 55.44 and 129.50

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Solution

The third proportional to 55.44 and 129.50 is: 302.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.44 : 129.50 = 129.50 : x
  2. Step 2: Convert to fraction form
    55.44/129.50 = 129.50/x
  3. Step 3: Cross multiply
    55.44x = 129.50 × 129.50
  4. Step 4: Simplify right side
    55.44x = 16,770.25
  5. Step 5: Solve for x
    x = 16,770.25/55.44
  6. Step 6: Final answer
    x = 302.51

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.