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Finding the Fourth Proportional to 449.19, 673.30 and 175.20

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Solution

The fourth proportional to 449.19, 673.30 and 175.20 is: 262.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.19 : 673.30 = 175.20 : x
  2. Step 2: Convert to fraction form
    449.19/673.30 = 175.20/x
  3. Step 3: Cross multiply
    449.19x = 673.30 × 175.20
  4. Step 4: Simplify right side
    449.19x = 117,962.16
  5. Step 5: Solve for x
    x = 117,962.16/449.19
  6. Step 6: Final answer
    x = 262.61

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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.