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Finding the Third Proportional to 81,412.50 and 176,407.50

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Solution

The third proportional to 81,412.50 and 176,407.50 is: 382,246.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,412.50 : 176,407.50 = 176,407.50 : x
  2. Step 2: Convert to fraction form
    81,412.50/176,407.50 = 176,407.50/x
  3. Step 3: Cross multiply
    81,412.50x = 176,407.50 × 176,407.50
  4. Step 4: Simplify right side
    81,412.50x = 31,119,606,056.25
  5. Step 5: Solve for x
    x = 31,119,606,056.25/81,412.50
  6. Step 6: Final answer
    x = 382,246.04

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.