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Finding the Third Proportional to 136,080 and 211,572

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Solution

The third proportional to 136,080 and 211,572 is: 328,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,080 : 211,572 = 211,572 : x
  2. Step 2: Convert to fraction form
    136,080/211,572 = 211,572/x
  3. Step 3: Cross multiply
    136,080x = 211,572 × 211,572
  4. Step 4: Simplify right side
    136,080x = 44,762,711,184
  5. Step 5: Solve for x
    x = 44,762,711,184/136,080
  6. Step 6: Final answer
    x = 328,944.09

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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.