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Finding the Fourth Proportional to 303.60, 455.58 and 249.96

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Solution

The fourth proportional to 303.60, 455.58 and 249.96 is: 375.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.60 : 455.58 = 249.96 : x
  2. Step 2: Convert to fraction form
    303.60/455.58 = 249.96/x
  3. Step 3: Cross multiply
    303.60x = 455.58 × 249.96
  4. Step 4: Simplify right side
    303.60x = 113,876.78
  5. Step 5: Solve for x
    x = 113,876.78/303.60
  6. Step 6: Final answer
    x = 375.09

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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.