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Finding the Third Proportional to 65,280 and 134,424

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Solution

The third proportional to 65,280 and 134,424 is: 276,804.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,280 : 134,424 = 134,424 : x
  2. Step 2: Convert to fraction form
    65,280/134,424 = 134,424/x
  3. Step 3: Cross multiply
    65,280x = 134,424 × 134,424
  4. Step 4: Simplify right side
    65,280x = 18,069,811,776
  5. Step 5: Solve for x
    x = 18,069,811,776/65,280
  6. Step 6: Final answer
    x = 276,804.71

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.