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Finding the Third Proportional to 138,948.75 and 282,808.50

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Solution

The third proportional to 138,948.75 and 282,808.50 is: 575,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,948.75 : 282,808.50 = 282,808.50 : x
  2. Step 2: Convert to fraction form
    138,948.75/282,808.50 = 282,808.50/x
  3. Step 3: Cross multiply
    138,948.75x = 282,808.50 × 282,808.50
  4. Step 4: Simplify right side
    138,948.75x = 79,980,647,672.25
  5. Step 5: Solve for x
    x = 79,980,647,672.25/138,948.75
  6. Step 6: Final answer
    x = 575,612.57

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.