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Finding the Fourth Proportional to 330.74, 456.39 and 183.37

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Solution

The fourth proportional to 330.74, 456.39 and 183.37 is: 253.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.74 : 456.39 = 183.37 : x
  2. Step 2: Convert to fraction form
    330.74/456.39 = 183.37/x
  3. Step 3: Cross multiply
    330.74x = 456.39 × 183.37
  4. Step 4: Simplify right side
    330.74x = 83,687.78
  5. Step 5: Solve for x
    x = 83,687.78/330.74
  6. Step 6: Final answer
    x = 253.03

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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.