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Finding the Fourth Proportional to 239,379.29, 330,250.73 and 137,367.89

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Solution

The fourth proportional to 239,379.29, 330,250.73 and 137,367.89 is: 189,514.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,379.29 : 330,250.73 = 137,367.89 : x
  2. Step 2: Convert to fraction form
    239,379.29/330,250.73 = 137,367.89/x
  3. Step 3: Cross multiply
    239,379.29x = 330,250.73 × 137,367.89
  4. Step 4: Simplify right side
    239,379.29x = 45,365,845,951.06
  5. Step 5: Solve for x
    x = 45,365,845,951.06/239,379.29
  6. Step 6: Final answer
    x = 189,514.50

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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.