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Finding the Fourth Proportional to 203,036.63, 280,097.46 and 131,439.71

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Solution

The fourth proportional to 203,036.63, 280,097.46 and 131,439.71 is: 181,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,036.63 : 280,097.46 = 131,439.71 : x
  2. Step 2: Convert to fraction form
    203,036.63/280,097.46 = 131,439.71/x
  3. Step 3: Cross multiply
    203,036.63x = 280,097.46 × 131,439.71
  4. Step 4: Simplify right side
    203,036.63x = 36,815,929,614.38
  5. Step 5: Solve for x
    x = 36,815,929,614.38/203,036.63
  6. Step 6: Final answer
    x = 181,326.54

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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.