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Finding the Third Proportional to 61,575 and 130,561

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Solution

The third proportional to 61,575 and 130,561 is: 276,835.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,575 : 130,561 = 130,561 : x
  2. Step 2: Convert to fraction form
    61,575/130,561 = 130,561/x
  3. Step 3: Cross multiply
    61,575x = 130,561 × 130,561
  4. Step 4: Simplify right side
    61,575x = 17,046,174,721
  5. Step 5: Solve for x
    x = 17,046,174,721/61,575
  6. Step 6: Final answer
    x = 276,835.97

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.