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Finding the Fourth Proportional to 239,236.48, 330,144.76 and 131,804

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Solution

The fourth proportional to 239,236.48, 330,144.76 and 131,804 is: 181,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,236.48 : 330,144.76 = 131,804 : x
  2. Step 2: Convert to fraction form
    239,236.48/330,144.76 = 131,804/x
  3. Step 3: Cross multiply
    239,236.48x = 330,144.76 × 131,804
  4. Step 4: Simplify right side
    239,236.48x = 43,514,399,947.04
  5. Step 5: Solve for x
    x = 43,514,399,947.04/239,236.48
  6. Step 6: Final answer
    x = 181,888.65

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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.