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Finding the Fourth Proportional to 244,520.80, 366,781.20 and 86,765.20

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Solution

The fourth proportional to 244,520.80, 366,781.20 and 86,765.20 is: 130,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,520.80 : 366,781.20 = 86,765.20 : x
  2. Step 2: Convert to fraction form
    244,520.80/366,781.20 = 86,765.20/x
  3. Step 3: Cross multiply
    244,520.80x = 366,781.20 × 86,765.20
  4. Step 4: Simplify right side
    244,520.80x = 31,823,844,174.24
  5. Step 5: Solve for x
    x = 31,823,844,174.24/244,520.80
  6. Step 6: Final answer
    x = 130,147.80

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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.