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Finding the Fourth Proportional to 303.66, 454.65 and 231.18

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Solution

The fourth proportional to 303.66, 454.65 and 231.18 is: 346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.66 : 454.65 = 231.18 : x
  2. Step 2: Convert to fraction form
    303.66/454.65 = 231.18/x
  3. Step 3: Cross multiply
    303.66x = 454.65 × 231.18
  4. Step 4: Simplify right side
    303.66x = 105,105.99
  5. Step 5: Solve for x
    x = 105,105.99/303.66
  6. Step 6: Final answer
    x = 346.13

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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.