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Finding the Fourth Proportional to 406.80, 610.08 and 163.32

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Solution

The fourth proportional to 406.80, 610.08 and 163.32 is: 244.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.80 : 610.08 = 163.32 : x
  2. Step 2: Convert to fraction form
    406.80/610.08 = 163.32/x
  3. Step 3: Cross multiply
    406.80x = 610.08 × 163.32
  4. Step 4: Simplify right side
    406.80x = 99,638.27
  5. Step 5: Solve for x
    x = 99,638.27/406.80
  6. Step 6: Final answer
    x = 244.93

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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.