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Finding the Third Proportional to 58,476.75 and 128,140.88

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Solution

The third proportional to 58,476.75 and 128,140.88 is: 280,796.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,476.75 : 128,140.88 = 128,140.88 : x
  2. Step 2: Convert to fraction form
    58,476.75/128,140.88 = 128,140.88/x
  3. Step 3: Cross multiply
    58,476.75x = 128,140.88 × 128,140.88
  4. Step 4: Simplify right side
    58,476.75x = 16,420,083,845.77
  5. Step 5: Solve for x
    x = 16,420,083,845.77/58,476.75
  6. Step 6: Final answer
    x = 280,796.79

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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.