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Finding the Third Proportional to 115,429 and 180,432.50

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Solution

The third proportional to 115,429 and 180,432.50 is: 282,042.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,429 : 180,432.50 = 180,432.50 : x
  2. Step 2: Convert to fraction form
    115,429/180,432.50 = 180,432.50/x
  3. Step 3: Cross multiply
    115,429x = 180,432.50 × 180,432.50
  4. Step 4: Simplify right side
    115,429x = 32,555,887,056.25
  5. Step 5: Solve for x
    x = 32,555,887,056.25/115,429
  6. Step 6: Final answer
    x = 282,042.53

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.