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Finding the Fourth Proportional to 255,076.80, 382,615.20 and 227,520.60

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Solution

The fourth proportional to 255,076.80, 382,615.20 and 227,520.60 is: 341,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,076.80 : 382,615.20 = 227,520.60 : x
  2. Step 2: Convert to fraction form
    255,076.80/382,615.20 = 227,520.60/x
  3. Step 3: Cross multiply
    255,076.80x = 382,615.20 × 227,520.60
  4. Step 4: Simplify right side
    255,076.80x = 87,052,839,873.12
  5. Step 5: Solve for x
    x = 87,052,839,873.12/255,076.80
  6. Step 6: Final answer
    x = 341,280.90

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1.5x scale

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.