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Finding the Fourth Proportional to 321,781.26, 444,058.14 and 178,542.33

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Solution

The fourth proportional to 321,781.26, 444,058.14 and 178,542.33 is: 246,388.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,781.26 : 444,058.14 = 178,542.33 : x
  2. Step 2: Convert to fraction form
    321,781.26/444,058.14 = 178,542.33/x
  3. Step 3: Cross multiply
    321,781.26x = 444,058.14 × 178,542.33
  4. Step 4: Simplify right side
    321,781.26x = 79,283,174,971.07
  5. Step 5: Solve for x
    x = 79,283,174,971.07/321,781.26
  6. Step 6: Final answer
    x = 246,388.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.