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Finding the Fourth Proportional to 449.38, 620.49 and 362.44

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Solution

The fourth proportional to 449.38, 620.49 and 362.44 is: 500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.38 : 620.49 = 362.44 : x
  2. Step 2: Convert to fraction form
    449.38/620.49 = 362.44/x
  3. Step 3: Cross multiply
    449.38x = 620.49 × 362.44
  4. Step 4: Simplify right side
    449.38x = 224,890.40
  5. Step 5: Solve for x
    x = 224,890.40/449.38
  6. Step 6: Final answer
    x = 500.45

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1.5x scale

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.