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Finding the Fourth Proportional to 239,158.66, 330,034.97 and 131,738.69

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Solution

The fourth proportional to 239,158.66, 330,034.97 and 131,738.69 is: 181,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,158.66 : 330,034.97 = 131,738.69 : x
  2. Step 2: Convert to fraction form
    239,158.66/330,034.97 = 131,738.69/x
  3. Step 3: Cross multiply
    239,158.66x = 330,034.97 × 131,738.69
  4. Step 4: Simplify right side
    239,158.66x = 43,478,374,601.99
  5. Step 5: Solve for x
    x = 43,478,374,601.99/239,158.66
  6. Step 6: Final answer
    x = 181,797.20

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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.