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Finding the Fourth Proportional to 449.59, 673.80 and 202.61

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Solution

The fourth proportional to 449.59, 673.80 and 202.61 is: 303.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.59 : 673.80 = 202.61 : x
  2. Step 2: Convert to fraction form
    449.59/673.80 = 202.61/x
  3. Step 3: Cross multiply
    449.59x = 673.80 × 202.61
  4. Step 4: Simplify right side
    449.59x = 136,514.24
  5. Step 5: Solve for x
    x = 136,514.24/449.59
  6. Step 6: Final answer
    x = 303.64

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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.