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Finding the Third Proportional to 77,772.75 and 209,502.75

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Solution

The third proportional to 77,772.75 and 209,502.75 is: 564,354.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,772.75 : 209,502.75 = 209,502.75 : x
  2. Step 2: Convert to fraction form
    77,772.75/209,502.75 = 209,502.75/x
  3. Step 3: Cross multiply
    77,772.75x = 209,502.75 × 209,502.75
  4. Step 4: Simplify right side
    77,772.75x = 43,891,402,257.56
  5. Step 5: Solve for x
    x = 43,891,402,257.56/77,772.75
  6. Step 6: Final answer
    x = 564,354.51

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Why These Related Problems?

These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.