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Finding the Fourth Proportional to 192,002.40, 288,003.60 and 67,327.20

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Solution

The fourth proportional to 192,002.40, 288,003.60 and 67,327.20 is: 100,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,002.40 : 288,003.60 = 67,327.20 : x
  2. Step 2: Convert to fraction form
    192,002.40/288,003.60 = 67,327.20/x
  3. Step 3: Cross multiply
    192,002.40x = 288,003.60 × 67,327.20
  4. Step 4: Simplify right side
    192,002.40x = 19,390,475,977.92
  5. Step 5: Solve for x
    x = 19,390,475,977.92/192,002.40
  6. Step 6: Final answer
    x = 100,990.80

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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.