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Finding the Fourth Proportional to 163.43, 244.07 and 130.98

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Solution

The fourth proportional to 163.43, 244.07 and 130.98 is: 195.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.43 : 244.07 = 130.98 : x
  2. Step 2: Convert to fraction form
    163.43/244.07 = 130.98/x
  3. Step 3: Cross multiply
    163.43x = 244.07 × 130.98
  4. Step 4: Simplify right side
    163.43x = 31,967.67
  5. Step 5: Solve for x
    x = 31,967.67/163.43
  6. Step 6: Final answer
    x = 195.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.