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Finding the Fourth Proportional to 239,086.69, 329,910.92 and 137,106.88

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Solution

The fourth proportional to 239,086.69, 329,910.92 and 137,106.88 is: 189,191.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,086.69 : 329,910.92 = 137,106.88 : x
  2. Step 2: Convert to fraction form
    239,086.69/329,910.92 = 137,106.88/x
  3. Step 3: Cross multiply
    239,086.69x = 329,910.92 × 137,106.88
  4. Step 4: Simplify right side
    239,086.69x = 45,233,056,694.19
  5. Step 5: Solve for x
    x = 45,233,056,694.19/239,086.69
  6. Step 6: Final answer
    x = 189,191.03

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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.