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Finding the Fourth Proportional to 449.05, 673.58 and 124.42

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Solution

The fourth proportional to 449.05, 673.58 and 124.42 is: 186.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.05 : 673.58 = 124.42 : x
  2. Step 2: Convert to fraction form
    449.05/673.58 = 124.42/x
  3. Step 3: Cross multiply
    449.05x = 673.58 × 124.42
  4. Step 4: Simplify right side
    449.05x = 83,804.52
  5. Step 5: Solve for x
    x = 83,804.52/449.05
  6. Step 6: Final answer
    x = 186.63

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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.