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Finding the Fourth Proportional to 192,229.58, 288,384.87 and 72,287.30

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Solution

The fourth proportional to 192,229.58, 288,384.87 and 72,287.30 is: 108,446.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,229.58 : 288,384.87 = 72,287.30 : x
  2. Step 2: Convert to fraction form
    192,229.58/288,384.87 = 72,287.30/x
  3. Step 3: Cross multiply
    192,229.58x = 288,384.87 × 72,287.30
  4. Step 4: Simplify right side
    192,229.58x = 20,846,563,613.15
  5. Step 5: Solve for x
    x = 20,846,563,613.15/192,229.58
  6. Step 6: Final answer
    x = 108,446.18

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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.