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Finding the Third Proportional to 112,750 and 178,400

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Solution

The third proportional to 112,750 and 178,400 is: 282,275.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,750 : 178,400 = 178,400 : x
  2. Step 2: Convert to fraction form
    112,750/178,400 = 178,400/x
  3. Step 3: Cross multiply
    112,750x = 178,400 × 178,400
  4. Step 4: Simplify right side
    112,750x = 31,826,560,000
  5. Step 5: Solve for x
    x = 31,826,560,000/112,750
  6. Step 6: Final answer
    x = 282,275.48

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.