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Finding the Third Proportional to 136,080.56 and 211,572.84

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Solution

The third proportional to 136,080.56 and 211,572.84 is: 328,945.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,080.56 : 211,572.84 = 211,572.84 : x
  2. Step 2: Convert to fraction form
    136,080.56/211,572.84 = 211,572.84/x
  3. Step 3: Cross multiply
    136,080.56x = 211,572.84 × 211,572.84
  4. Step 4: Simplify right side
    136,080.56x = 44,763,068,212.46
  5. Step 5: Solve for x
    x = 44,763,068,212.46/136,080.56
  6. Step 6: Final answer
    x = 328,945.35

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.