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Finding the Fourth Proportional to 192,179.80, 287,880.90 and 133,082.20

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Solution

The fourth proportional to 192,179.80, 287,880.90 and 133,082.20 is: 199,354.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,179.80 : 287,880.90 = 133,082.20 : x
  2. Step 2: Convert to fraction form
    192,179.80/287,880.90 = 133,082.20/x
  3. Step 3: Cross multiply
    192,179.80x = 287,880.90 × 133,082.20
  4. Step 4: Simplify right side
    192,179.80x = 38,311,823,509.98
  5. Step 5: Solve for x
    x = 38,311,823,509.98/192,179.80
  6. Step 6: Final answer
    x = 199,354.06

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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.