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Finding the Fourth Proportional to 394,648.71, 591,736.29 and 181,149.51

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Solution

The fourth proportional to 394,648.71, 591,736.29 and 181,149.51 is: 271,615.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,648.71 : 591,736.29 = 181,149.51 : x
  2. Step 2: Convert to fraction form
    394,648.71/591,736.29 = 181,149.51/x
  3. Step 3: Cross multiply
    394,648.71x = 591,736.29 × 181,149.51
  4. Step 4: Simplify right side
    394,648.71x = 107,192,740,522.42
  5. Step 5: Solve for x
    x = 107,192,740,522.42/394,648.71
  6. Step 6: Final answer
    x = 271,615.59

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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.