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Finding the Fourth Proportional to 330.03, 492.72 and 252.59

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Solution

The fourth proportional to 330.03, 492.72 and 252.59 is: 377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.03 : 492.72 = 252.59 : x
  2. Step 2: Convert to fraction form
    330.03/492.72 = 252.59/x
  3. Step 3: Cross multiply
    330.03x = 492.72 × 252.59
  4. Step 4: Simplify right side
    330.03x = 124,453.68
  5. Step 5: Solve for x
    x = 124,453.68/330.03
  6. Step 6: Final answer
    x = 377.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.