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Finding the Fourth Proportional to 263,083.62, 394,502.73 and 136,689.89

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Solution

The fourth proportional to 263,083.62, 394,502.73 and 136,689.89 is: 204,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,083.62 : 394,502.73 = 136,689.89 : x
  2. Step 2: Convert to fraction form
    263,083.62/394,502.73 = 136,689.89/x
  3. Step 3: Cross multiply
    263,083.62x = 394,502.73 × 136,689.89
  4. Step 4: Simplify right side
    263,083.62x = 53,924,532,795.89
  5. Step 5: Solve for x
    x = 53,924,532,795.89/263,083.62
  6. Step 6: Final answer
    x = 204,971.08

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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.