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Finding the Third Proportional to 64,128 and 137,472

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Solution

The third proportional to 64,128 and 137,472 is: 294,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,128 : 137,472 = 137,472 : x
  2. Step 2: Convert to fraction form
    64,128/137,472 = 137,472/x
  3. Step 3: Cross multiply
    64,128x = 137,472 × 137,472
  4. Step 4: Simplify right side
    64,128x = 18,898,550,784
  5. Step 5: Solve for x
    x = 18,898,550,784/64,128
  6. Step 6: Final answer
    x = 294,700.46

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.