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Finding the Fourth Proportional to 328,456.35, 492,531.39 and 170,642.43

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Solution

The fourth proportional to 328,456.35, 492,531.39 and 170,642.43 is: 255,884.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,456.35 : 492,531.39 = 170,642.43 : x
  2. Step 2: Convert to fraction form
    328,456.35/492,531.39 = 170,642.43/x
  3. Step 3: Cross multiply
    328,456.35x = 492,531.39 × 170,642.43
  4. Step 4: Simplify right side
    328,456.35x = 84,046,753,240.88
  5. Step 5: Solve for x
    x = 84,046,753,240.88/328,456.35
  6. Step 6: Final answer
    x = 255,884.09

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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.