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Finding the Fourth Proportional to 192,503.93, 288,562.05 and 80,246.30

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Solution

The fourth proportional to 192,503.93, 288,562.05 and 80,246.30 is: 120,288.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,503.93 : 288,562.05 = 80,246.30 : x
  2. Step 2: Convert to fraction form
    192,503.93/288,562.05 = 80,246.30/x
  3. Step 3: Cross multiply
    192,503.93x = 288,562.05 × 80,246.30
  4. Step 4: Simplify right side
    192,503.93x = 23,156,036,832.92
  5. Step 5: Solve for x
    x = 23,156,036,832.92/192,503.93
  6. Step 6: Final answer
    x = 120,288.64

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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.