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Finding the Fourth Proportional to 361,540.80, 541,792.80 and 266,025.60

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Solution

The fourth proportional to 361,540.80, 541,792.80 and 266,025.60 is: 398,656.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,540.80 : 541,792.80 = 266,025.60 : x
  2. Step 2: Convert to fraction form
    361,540.80/541,792.80 = 266,025.60/x
  3. Step 3: Cross multiply
    361,540.80x = 541,792.80 × 266,025.60
  4. Step 4: Simplify right side
    361,540.80x = 144,130,754,695.68
  5. Step 5: Solve for x
    x = 144,130,754,695.68/361,540.80
  6. Step 6: Final answer
    x = 398,656.96

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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.