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Finding the Fourth Proportional to 248,568.70, 372,915.15 and 80,104.90

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Solution

The fourth proportional to 248,568.70, 372,915.15 and 80,104.90 is: 120,177.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,568.70 : 372,915.15 = 80,104.90 : x
  2. Step 2: Convert to fraction form
    248,568.70/372,915.15 = 80,104.90/x
  3. Step 3: Cross multiply
    248,568.70x = 372,915.15 × 80,104.90
  4. Step 4: Simplify right side
    248,568.70x = 29,872,330,799.24
  5. Step 5: Solve for x
    x = 29,872,330,799.24/248,568.70
  6. Step 6: Final answer
    x = 120,177.36

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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.