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Finding the Fourth Proportional to 303.45, 453.95 and 252.20

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Solution

The fourth proportional to 303.45, 453.95 and 252.20 is: 377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.45 : 453.95 = 252.20 : x
  2. Step 2: Convert to fraction form
    303.45/453.95 = 252.20/x
  3. Step 3: Cross multiply
    303.45x = 453.95 × 252.20
  4. Step 4: Simplify right side
    303.45x = 114,486.19
  5. Step 5: Solve for x
    x = 114,486.19/303.45
  6. Step 6: Final answer
    x = 377.28

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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.