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Finding the Fourth Proportional to 163.04, 244.57 and 138.83

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Solution

The fourth proportional to 163.04, 244.57 and 138.83 is: 208.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.04 : 244.57 = 138.83 : x
  2. Step 2: Convert to fraction form
    163.04/244.57 = 138.83/x
  3. Step 3: Cross multiply
    163.04x = 244.57 × 138.83
  4. Step 4: Simplify right side
    163.04x = 33,953.65
  5. Step 5: Solve for x
    x = 33,953.65/163.04
  6. Step 6: Final answer
    x = 208.25

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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.