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Finding the Fourth Proportional to 449.35, 672.91 and 376.11

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Solution

The fourth proportional to 449.35, 672.91 and 376.11 is: 563.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.35 : 672.91 = 376.11 : x
  2. Step 2: Convert to fraction form
    449.35/672.91 = 376.11/x
  3. Step 3: Cross multiply
    449.35x = 672.91 × 376.11
  4. Step 4: Simplify right side
    449.35x = 253,087.24
  5. Step 5: Solve for x
    x = 253,087.24/449.35
  6. Step 6: Final answer
    x = 563.23

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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.