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Finding the Third Proportional to 127,990 and 180,159

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Solution

The third proportional to 127,990 and 180,159 is: 253,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,990 : 180,159 = 180,159 : x
  2. Step 2: Convert to fraction form
    127,990/180,159 = 180,159/x
  3. Step 3: Cross multiply
    127,990x = 180,159 × 180,159
  4. Step 4: Simplify right side
    127,990x = 32,457,265,281
  5. Step 5: Solve for x
    x = 32,457,265,281/127,990
  6. Step 6: Final answer
    x = 253,592.20

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.