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Finding the Fourth Proportional to 239,179.92, 330,082.48 and 137,204.64

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Solution

The fourth proportional to 239,179.92, 330,082.48 and 137,204.64 is: 189,350.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,179.92 : 330,082.48 = 137,204.64 : x
  2. Step 2: Convert to fraction form
    239,179.92/330,082.48 = 137,204.64/x
  3. Step 3: Cross multiply
    239,179.92x = 330,082.48 × 137,204.64
  4. Step 4: Simplify right side
    239,179.92x = 45,288,847,838.71
  5. Step 5: Solve for x
    x = 45,288,847,838.71/239,179.92
  6. Step 6: Final answer
    x = 189,350.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.