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Finding the Fourth Proportional to 239,449, 359,310.46 and 121,129.96

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Solution

The fourth proportional to 239,449, 359,310.46 and 121,129.96 is: 181,764.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,449 : 359,310.46 = 121,129.96 : x
  2. Step 2: Convert to fraction form
    239,449/359,310.46 = 121,129.96/x
  3. Step 3: Cross multiply
    239,449x = 359,310.46 × 121,129.96
  4. Step 4: Simplify right side
    239,449x = 43,523,261,647.38
  5. Step 5: Solve for x
    x = 43,523,261,647.38/239,449
  6. Step 6: Final answer
    x = 181,764.22

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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.