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Finding the Fourth Proportional to 435.32, 600.75 and 258.31

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Solution

The fourth proportional to 435.32, 600.75 and 258.31 is: 356.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.32 : 600.75 = 258.31 : x
  2. Step 2: Convert to fraction form
    435.32/600.75 = 258.31/x
  3. Step 3: Cross multiply
    435.32x = 600.75 × 258.31
  4. Step 4: Simplify right side
    435.32x = 155,179.73
  5. Step 5: Solve for x
    x = 155,179.73/435.32
  6. Step 6: Final answer
    x = 356.47

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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.