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Finding the Fourth Proportional to 239,853.41, 359,775.09 and 79,940.92

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Solution

The fourth proportional to 239,853.41, 359,775.09 and 79,940.92 is: 119,909.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,853.41 : 359,775.09 = 79,940.92 : x
  2. Step 2: Convert to fraction form
    239,853.41/359,775.09 = 79,940.92/x
  3. Step 3: Cross multiply
    239,853.41x = 359,775.09 × 79,940.92
  4. Step 4: Simplify right side
    239,853.41x = 28,760,751,687.68
  5. Step 5: Solve for x
    x = 28,760,751,687.68/239,853.41
  6. Step 6: Final answer
    x = 119,909.71

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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.