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Finding the Fourth Proportional to 331,129.24, 456,959.24 and 187,888.91

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Solution

The fourth proportional to 331,129.24, 456,959.24 and 187,888.91 is: 259,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,129.24 : 456,959.24 = 187,888.91 : x
  2. Step 2: Convert to fraction form
    331,129.24/456,959.24 = 187,888.91/x
  3. Step 3: Cross multiply
    331,129.24x = 456,959.24 × 187,888.91
  4. Step 4: Simplify right side
    331,129.24x = 85,857,570,998.37
  5. Step 5: Solve for x
    x = 85,857,570,998.37/331,129.24
  6. Step 6: Final answer
    x = 259,287.19

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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.