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Finding the Fourth Proportional to 192,207.60, 288,311.40 and 112,163.40

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Solution

The fourth proportional to 192,207.60, 288,311.40 and 112,163.40 is: 168,245.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,207.60 : 288,311.40 = 112,163.40 : x
  2. Step 2: Convert to fraction form
    192,207.60/288,311.40 = 112,163.40/x
  3. Step 3: Cross multiply
    192,207.60x = 288,311.40 × 112,163.40
  4. Step 4: Simplify right side
    192,207.60x = 32,337,986,882.76
  5. Step 5: Solve for x
    x = 32,337,986,882.76/192,207.60
  6. Step 6: Final answer
    x = 168,245.10

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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.