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Finding the Fourth Proportional to 330.36, 455.91 and 183.03

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Solution

The fourth proportional to 330.36, 455.91 and 183.03 is: 252.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.36 : 455.91 = 183.03 : x
  2. Step 2: Convert to fraction form
    330.36/455.91 = 183.03/x
  3. Step 3: Cross multiply
    330.36x = 455.91 × 183.03
  4. Step 4: Simplify right side
    330.36x = 83,445.21
  5. Step 5: Solve for x
    x = 83,445.21/330.36
  6. Step 6: Final answer
    x = 252.59

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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.