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Finding the Fourth Proportional to 322,719.40, 484,079.10 and 204,524.20

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Solution

The fourth proportional to 322,719.40, 484,079.10 and 204,524.20 is: 306,786.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,719.40 : 484,079.10 = 204,524.20 : x
  2. Step 2: Convert to fraction form
    322,719.40/484,079.10 = 204,524.20/x
  3. Step 3: Cross multiply
    322,719.40x = 484,079.10 × 204,524.20
  4. Step 4: Simplify right side
    322,719.40x = 99,005,890,664.22
  5. Step 5: Solve for x
    x = 99,005,890,664.22/322,719.40
  6. Step 6: Final answer
    x = 306,786.30

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Similar ratio
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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.