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Finding the Fourth Proportional to 240,556.64, 360,915.09 and 80,648.38

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Solution

The fourth proportional to 240,556.64, 360,915.09 and 80,648.38 is: 120,999.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,556.64 : 360,915.09 = 80,648.38 : x
  2. Step 2: Convert to fraction form
    240,556.64/360,915.09 = 80,648.38/x
  3. Step 3: Cross multiply
    240,556.64x = 360,915.09 × 80,648.38
  4. Step 4: Simplify right side
    240,556.64x = 29,107,215,898.27
  5. Step 5: Solve for x
    x = 29,107,215,898.27/240,556.64
  6. Step 6: Final answer
    x = 120,999.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.