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Finding the Fourth Proportional to 435.80, 601.43 and 239.33

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Solution

The fourth proportional to 435.80, 601.43 and 239.33 is: 330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.80 : 601.43 = 239.33 : x
  2. Step 2: Convert to fraction form
    435.80/601.43 = 239.33/x
  3. Step 3: Cross multiply
    435.80x = 601.43 × 239.33
  4. Step 4: Simplify right side
    435.80x = 143,940.55
  5. Step 5: Solve for x
    x = 143,940.55/435.80
  6. Step 6: Final answer
    x = 330.29

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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.