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Finding the Third Proportional to 142,750 and 310,932

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Solution

The third proportional to 142,750 and 310,932 is: 677,258.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,750 : 310,932 = 310,932 : x
  2. Step 2: Convert to fraction form
    142,750/310,932 = 310,932/x
  3. Step 3: Cross multiply
    142,750x = 310,932 × 310,932
  4. Step 4: Simplify right side
    142,750x = 96,678,708,624
  5. Step 5: Solve for x
    x = 96,678,708,624/142,750
  6. Step 6: Final answer
    x = 677,258.90

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.