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Finding the Fourth Proportional to 202,751.59, 279,665.38 and 130,039.31

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Solution

The fourth proportional to 202,751.59, 279,665.38 and 130,039.31 is: 179,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,751.59 : 279,665.38 = 130,039.31 : x
  2. Step 2: Convert to fraction form
    202,751.59/279,665.38 = 130,039.31/x
  3. Step 3: Cross multiply
    202,751.59x = 279,665.38 × 130,039.31
  4. Step 4: Simplify right side
    202,751.59x = 36,367,493,046.09
  5. Step 5: Solve for x
    x = 36,367,493,046.09/202,751.59
  6. Step 6: Final answer
    x = 179,369.71

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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.