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Finding the Fourth Proportional to 487.60, 673.03 and 332.44

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Solution

The fourth proportional to 487.60, 673.03 and 332.44 is: 458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    487.60 : 673.03 = 332.44 : x
  2. Step 2: Convert to fraction form
    487.60/673.03 = 332.44/x
  3. Step 3: Cross multiply
    487.60x = 673.03 × 332.44
  4. Step 4: Simplify right side
    487.60x = 223,742.09
  5. Step 5: Solve for x
    x = 223,742.09/487.60
  6. Step 6: Final answer
    x = 458.86

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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.