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Finding the Fourth Proportional to 303.81, 419.16 and 179.46

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Solution

The fourth proportional to 303.81, 419.16 and 179.46 is: 247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.81 : 419.16 = 179.46 : x
  2. Step 2: Convert to fraction form
    303.81/419.16 = 179.46/x
  3. Step 3: Cross multiply
    303.81x = 419.16 × 179.46
  4. Step 4: Simplify right side
    303.81x = 75,222.45
  5. Step 5: Solve for x
    x = 75,222.45/303.81
  6. Step 6: Final answer
    x = 247.60

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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.