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Finding the Fourth Proportional to 443.87, 612.49 and 247.36

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Solution

The fourth proportional to 443.87, 612.49 and 247.36 is: 341.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.87 : 612.49 = 247.36 : x
  2. Step 2: Convert to fraction form
    443.87/612.49 = 247.36/x
  3. Step 3: Cross multiply
    443.87x = 612.49 × 247.36
  4. Step 4: Simplify right side
    443.87x = 151,505.53
  5. Step 5: Solve for x
    x = 151,505.53/443.87
  6. Step 6: Final answer
    x = 341.33

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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.