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Finding the Fourth Proportional to 303.48, 418.83 and 179.18

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Solution

The fourth proportional to 303.48, 418.83 and 179.18 is: 247.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.48 : 418.83 = 179.18 : x
  2. Step 2: Convert to fraction form
    303.48/418.83 = 179.18/x
  3. Step 3: Cross multiply
    303.48x = 418.83 × 179.18
  4. Step 4: Simplify right side
    303.48x = 75,043.87
  5. Step 5: Solve for x
    x = 75,043.87/303.48
  6. Step 6: Final answer
    x = 247.28

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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.