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Finding the Fourth Proportional to 435.74, 601.36 and 239.29

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Solution

The fourth proportional to 435.74, 601.36 and 239.29 is: 330.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.74 : 601.36 = 239.29 : x
  2. Step 2: Convert to fraction form
    435.74/601.36 = 239.29/x
  3. Step 3: Cross multiply
    435.74x = 601.36 × 239.29
  4. Step 4: Simplify right side
    435.74x = 143,899.43
  5. Step 5: Solve for x
    x = 143,899.43/435.74
  6. Step 6: Final answer
    x = 330.24

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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.