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Finding the Fourth Proportional to 192,652.20, 288,863.10 and 99,340.20

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Solution

The fourth proportional to 192,652.20, 288,863.10 and 99,340.20 is: 148,950.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,652.20 : 288,863.10 = 99,340.20 : x
  2. Step 2: Convert to fraction form
    192,652.20/288,863.10 = 99,340.20/x
  3. Step 3: Cross multiply
    192,652.20x = 288,863.10 × 99,340.20
  4. Step 4: Simplify right side
    192,652.20x = 28,695,718,126.62
  5. Step 5: Solve for x
    x = 28,695,718,126.62/192,652.20
  6. Step 6: Final answer
    x = 148,950.90

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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.