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Finding the Third Proportional to 112,860 and 240,720

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Solution

The third proportional to 112,860 and 240,720 is: 513,433.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,860 : 240,720 = 240,720 : x
  2. Step 2: Convert to fraction form
    112,860/240,720 = 240,720/x
  3. Step 3: Cross multiply
    112,860x = 240,720 × 240,720
  4. Step 4: Simplify right side
    112,860x = 57,946,118,400
  5. Step 5: Solve for x
    x = 57,946,118,400/112,860
  6. Step 6: Final answer
    x = 513,433.62

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.