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Finding the Third Proportional to 135,884.25 and 288,211.50

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Solution

The third proportional to 135,884.25 and 288,211.50 is: 611,298.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,884.25 : 288,211.50 = 288,211.50 : x
  2. Step 2: Convert to fraction form
    135,884.25/288,211.50 = 288,211.50/x
  3. Step 3: Cross multiply
    135,884.25x = 288,211.50 × 288,211.50
  4. Step 4: Simplify right side
    135,884.25x = 83,065,868,732.25
  5. Step 5: Solve for x
    x = 83,065,868,732.25/135,884.25
  6. Step 6: Final answer
    x = 611,298.72

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.