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Finding the Fourth Proportional to 435.25, 600.66 and 258.25

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Solution

The fourth proportional to 435.25, 600.66 and 258.25 is: 356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.25 : 600.66 = 258.25 : x
  2. Step 2: Convert to fraction form
    435.25/600.66 = 258.25/x
  3. Step 3: Cross multiply
    435.25x = 600.66 × 258.25
  4. Step 4: Simplify right side
    435.25x = 155,120.45
  5. Step 5: Solve for x
    x = 155,120.45/435.25
  6. Step 6: Final answer
    x = 356.39

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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.