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Finding the Fourth Proportional to 279,887.56, 386,244.92 and 159,029

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Solution

The fourth proportional to 279,887.56, 386,244.92 and 159,029 is: 219,460.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,887.56 : 386,244.92 = 159,029 : x
  2. Step 2: Convert to fraction form
    279,887.56/386,244.92 = 159,029/x
  3. Step 3: Cross multiply
    279,887.56x = 386,244.92 × 159,029
  4. Step 4: Simplify right side
    279,887.56x = 61,424,143,382.68
  5. Step 5: Solve for x
    x = 61,424,143,382.68/279,887.56
  6. Step 6: Final answer
    x = 219,460.07

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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.