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Finding the Fourth Proportional to 269,817.88, 404,975.64 and 136,791.40

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Solution

The fourth proportional to 269,817.88, 404,975.64 and 136,791.40 is: 205,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,817.88 : 404,975.64 = 136,791.40 : x
  2. Step 2: Convert to fraction form
    269,817.88/404,975.64 = 136,791.40/x
  3. Step 3: Cross multiply
    269,817.88x = 404,975.64 × 136,791.40
  4. Step 4: Simplify right side
    269,817.88x = 55,397,184,761.50
  5. Step 5: Solve for x
    x = 55,397,184,761.50/269,817.88
  6. Step 6: Final answer
    x = 205,313.25

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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.