Home / 281,182.28-421,728.78-131,526.44

Finding the Fourth Proportional to 281,182.28, 421,728.78 and 131,526.44

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Solution

The fourth proportional to 281,182.28, 421,728.78 and 131,526.44 is: 197,268.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,182.28 : 421,728.78 = 131,526.44 : x
  2. Step 2: Convert to fraction form
    281,182.28/421,728.78 = 131,526.44/x
  3. Step 3: Cross multiply
    281,182.28x = 421,728.78 × 131,526.44
  4. Step 4: Simplify right side
    281,182.28x = 55,468,485,078.94
  5. Step 5: Solve for x
    x = 55,468,485,078.94/281,182.28
  6. Step 6: Final answer
    x = 197,268.78

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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.