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Finding the Fourth Proportional to 435.45, 600.90 and 238.98

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Solution

The fourth proportional to 435.45, 600.90 and 238.98 is: 329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.45 : 600.90 = 238.98 : x
  2. Step 2: Convert to fraction form
    435.45/600.90 = 238.98/x
  3. Step 3: Cross multiply
    435.45x = 600.90 × 238.98
  4. Step 4: Simplify right side
    435.45x = 143,603.08
  5. Step 5: Solve for x
    x = 143,603.08/435.45
  6. Step 6: Final answer
    x = 329.78

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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.