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Finding the Fourth Proportional to 467.25, 699.79 and 284.31

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Solution

The fourth proportional to 467.25, 699.79 and 284.31 is: 425.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.25 : 699.79 = 284.31 : x
  2. Step 2: Convert to fraction form
    467.25/699.79 = 284.31/x
  3. Step 3: Cross multiply
    467.25x = 699.79 × 284.31
  4. Step 4: Simplify right side
    467.25x = 198,960.07
  5. Step 5: Solve for x
    x = 198,960.07/467.25
  6. Step 6: Final answer
    x = 425.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.