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Finding the Third Proportional to 187,765.50 and 288,209.50

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Solution

The third proportional to 187,765.50 and 288,209.50 is: 442,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,765.50 : 288,209.50 = 288,209.50 : x
  2. Step 2: Convert to fraction form
    187,765.50/288,209.50 = 288,209.50/x
  3. Step 3: Cross multiply
    187,765.50x = 288,209.50 × 288,209.50
  4. Step 4: Simplify right side
    187,765.50x = 83,064,715,890.25
  5. Step 5: Solve for x
    x = 83,064,715,890.25/187,765.50
  6. Step 6: Final answer
    x = 442,385.40

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.