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Finding the Fourth Proportional to 255,753.60, 353,091.36 and 227,380.80

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Solution

The fourth proportional to 255,753.60, 353,091.36 and 227,380.80 is: 313,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,753.60 : 353,091.36 = 227,380.80 : x
  2. Step 2: Convert to fraction form
    255,753.60/353,091.36 = 227,380.80/x
  3. Step 3: Cross multiply
    255,753.60x = 353,091.36 × 227,380.80
  4. Step 4: Simplify right side
    255,753.60x = 80,286,195,909.89
  5. Step 5: Solve for x
    x = 80,286,195,909.89/255,753.60
  6. Step 6: Final answer
    x = 313,920.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.