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Finding the Fourth Proportional to 406.63, 610.05 and 163.32

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Solution

The fourth proportional to 406.63, 610.05 and 163.32 is: 245.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.63 : 610.05 = 163.32 : x
  2. Step 2: Convert to fraction form
    406.63/610.05 = 163.32/x
  3. Step 3: Cross multiply
    406.63x = 610.05 × 163.32
  4. Step 4: Simplify right side
    406.63x = 99,633.37
  5. Step 5: Solve for x
    x = 99,633.37/406.63
  6. Step 6: Final answer
    x = 245.02

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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.