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Finding the Fourth Proportional to 281,524.32, 422,286.80 and 84,532.32

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Solution

The fourth proportional to 281,524.32, 422,286.80 and 84,532.32 is: 126,798.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,524.32 : 422,286.80 = 84,532.32 : x
  2. Step 2: Convert to fraction form
    281,524.32/422,286.80 = 84,532.32/x
  3. Step 3: Cross multiply
    281,524.32x = 422,286.80 × 84,532.32
  4. Step 4: Simplify right side
    281,524.32x = 35,696,882,909.38
  5. Step 5: Solve for x
    x = 35,696,882,909.38/281,524.32
  6. Step 6: Final answer
    x = 126,798.58

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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.