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Finding the Third Proportional to 109,211.25 and 239,835.75

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Solution

The third proportional to 109,211.25 and 239,835.75 is: 526,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,211.25 : 239,835.75 = 239,835.75 : x
  2. Step 2: Convert to fraction form
    109,211.25/239,835.75 = 239,835.75/x
  3. Step 3: Cross multiply
    109,211.25x = 239,835.75 × 239,835.75
  4. Step 4: Simplify right side
    109,211.25x = 57,521,186,978.06
  5. Step 5: Solve for x
    x = 57,521,186,978.06/109,211.25
  6. Step 6: Final answer
    x = 526,696.54

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.