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Finding the Third Proportional to 180,630 and 386,167.50

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Solution

The third proportional to 180,630 and 386,167.50 is: 825,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,630 : 386,167.50 = 386,167.50 : x
  2. Step 2: Convert to fraction form
    180,630/386,167.50 = 386,167.50/x
  3. Step 3: Cross multiply
    180,630x = 386,167.50 × 386,167.50
  4. Step 4: Simplify right side
    180,630x = 149,125,338,056.25
  5. Step 5: Solve for x
    x = 149,125,338,056.25/180,630
  6. Step 6: Final answer
    x = 825,584.55

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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.