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Finding the Third Proportional to 58,347 and 128,007

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Solution

The third proportional to 58,347 and 128,007 is: 280,833.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,347 : 128,007 = 128,007 : x
  2. Step 2: Convert to fraction form
    58,347/128,007 = 128,007/x
  3. Step 3: Cross multiply
    58,347x = 128,007 × 128,007
  4. Step 4: Simplify right side
    58,347x = 16,385,792,049
  5. Step 5: Solve for x
    x = 16,385,792,049/58,347
  6. Step 6: Final answer
    x = 280,833.50

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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.