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Finding the Third Proportional to 60.81 and 143.13

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Solution

The third proportional to 60.81 and 143.13 is: 336.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.81 : 143.13 = 143.13 : x
  2. Step 2: Convert to fraction form
    60.81/143.13 = 143.13/x
  3. Step 3: Cross multiply
    60.81x = 143.13 × 143.13
  4. Step 4: Simplify right side
    60.81x = 20,484.77
  5. Step 5: Solve for x
    x = 20,484.77/60.81
  6. Step 6: Final answer
    x = 336.85

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.