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Finding the Third Proportional to 147,874 and 317,888

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Solution

The third proportional to 147,874 and 317,888 is: 683,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,874 : 317,888 = 317,888 : x
  2. Step 2: Convert to fraction form
    147,874/317,888 = 317,888/x
  3. Step 3: Cross multiply
    147,874x = 317,888 × 317,888
  4. Step 4: Simplify right side
    147,874x = 101,052,780,544
  5. Step 5: Solve for x
    x = 101,052,780,544/147,874
  6. Step 6: Final answer
    x = 683,370.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.