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Finding the Fourth Proportional to 406.06, 609.17 and 232.81

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Solution

The fourth proportional to 406.06, 609.17 and 232.81 is: 349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.06 : 609.17 = 232.81 : x
  2. Step 2: Convert to fraction form
    406.06/609.17 = 232.81/x
  3. Step 3: Cross multiply
    406.06x = 609.17 × 232.81
  4. Step 4: Simplify right side
    406.06x = 141,820.87
  5. Step 5: Solve for x
    x = 141,820.87/406.06
  6. Step 6: Final answer
    x = 349.26

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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.