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Finding the Third Proportional to 58,842 and 128,622

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Solution

The third proportional to 58,842 and 128,622 is: 281,153.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,842 : 128,622 = 128,622 : x
  2. Step 2: Convert to fraction form
    58,842/128,622 = 128,622/x
  3. Step 3: Cross multiply
    58,842x = 128,622 × 128,622
  4. Step 4: Simplify right side
    58,842x = 16,543,618,884
  5. Step 5: Solve for x
    x = 16,543,618,884/58,842
  6. Step 6: Final answer
    x = 281,153.24

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.