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Finding the Fourth Proportional to 435.60, 601.07 and 239.09

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Solution

The fourth proportional to 435.60, 601.07 and 239.09 is: 329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.60 : 601.07 = 239.09 : x
  2. Step 2: Convert to fraction form
    435.60/601.07 = 239.09/x
  3. Step 3: Cross multiply
    435.60x = 601.07 × 239.09
  4. Step 4: Simplify right side
    435.60x = 143,705.63
  5. Step 5: Solve for x
    x = 143,705.63/435.60
  6. Step 6: Final answer
    x = 329.90

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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.