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Finding the Fourth Proportional to 273,886.38, 411,167.82 and 129,929.82

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Solution

The fourth proportional to 273,886.38, 411,167.82 and 129,929.82 is: 195,055.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,886.38 : 411,167.82 = 129,929.82 : x
  2. Step 2: Convert to fraction form
    273,886.38/411,167.82 = 129,929.82/x
  3. Step 3: Cross multiply
    273,886.38x = 411,167.82 × 129,929.82
  4. Step 4: Simplify right side
    273,886.38x = 53,422,960,842.39
  5. Step 5: Solve for x
    x = 53,422,960,842.39/273,886.38
  6. Step 6: Final answer
    x = 195,055.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.