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Finding the Fourth Proportional to 248,568, 372,799.68 and 80,103.68

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Solution

The fourth proportional to 248,568, 372,799.68 and 80,103.68 is: 120,138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,568 : 372,799.68 = 80,103.68 : x
  2. Step 2: Convert to fraction form
    248,568/372,799.68 = 80,103.68/x
  3. Step 3: Cross multiply
    248,568x = 372,799.68 × 80,103.68
  4. Step 4: Simplify right side
    248,568x = 29,862,626,270.82
  5. Step 5: Solve for x
    x = 29,862,626,270.82/248,568
  6. Step 6: Final answer
    x = 120,138.66

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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.