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Finding the Fourth Proportional to 192,300.30, 288,450.45 and 129,314.70

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Solution

The fourth proportional to 192,300.30, 288,450.45 and 129,314.70 is: 193,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,300.30 : 288,450.45 = 129,314.70 : x
  2. Step 2: Convert to fraction form
    192,300.30/288,450.45 = 129,314.70/x
  3. Step 3: Cross multiply
    192,300.30x = 288,450.45 × 129,314.70
  4. Step 4: Simplify right side
    192,300.30x = 37,300,883,406.62
  5. Step 5: Solve for x
    x = 37,300,883,406.62/192,300.30
  6. Step 6: Final answer
    x = 193,972.05

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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.