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Finding the Fourth Proportional to 239,251.71, 330,182.05 and 131,821.71

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Solution

The fourth proportional to 239,251.71, 330,182.05 and 131,821.71 is: 181,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,251.71 : 330,182.05 = 131,821.71 : x
  2. Step 2: Convert to fraction form
    239,251.71/330,182.05 = 131,821.71/x
  3. Step 3: Cross multiply
    239,251.71x = 330,182.05 × 131,821.71
  4. Step 4: Simplify right side
    239,251.71x = 43,525,162,608.26
  5. Step 5: Solve for x
    x = 43,525,162,608.26/239,251.71
  6. Step 6: Final answer
    x = 181,922.06

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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.