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Finding the Third Proportional to 116,720 and 181,080

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Solution

The third proportional to 116,720 and 181,080 is: 280,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,720 : 181,080 = 181,080 : x
  2. Step 2: Convert to fraction form
    116,720/181,080 = 181,080/x
  3. Step 3: Cross multiply
    116,720x = 181,080 × 181,080
  4. Step 4: Simplify right side
    116,720x = 32,789,966,400
  5. Step 5: Solve for x
    x = 32,789,966,400/116,720
  6. Step 6: Final answer
    x = 280,928.43

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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.