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Finding the Third Proportional to 61,438 and 134,558

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Solution

The third proportional to 61,438 and 134,558 is: 294,701.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,438 : 134,558 = 134,558 : x
  2. Step 2: Convert to fraction form
    61,438/134,558 = 134,558/x
  3. Step 3: Cross multiply
    61,438x = 134,558 × 134,558
  4. Step 4: Simplify right side
    61,438x = 18,105,855,364
  5. Step 5: Solve for x
    x = 18,105,855,364/61,438
  6. Step 6: Final answer
    x = 294,701.25

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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.