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Finding the Fourth Proportional to 487.36, 675.33 and 481.42

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Solution

The fourth proportional to 487.36, 675.33 and 481.42 is: 667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    487.36 : 675.33 = 481.42 : x
  2. Step 2: Convert to fraction form
    487.36/675.33 = 481.42/x
  3. Step 3: Cross multiply
    487.36x = 675.33 × 481.42
  4. Step 4: Simplify right side
    487.36x = 325,117.37
  5. Step 5: Solve for x
    x = 325,117.37/487.36
  6. Step 6: Final answer
    x = 667.10

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.