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Finding the Fourth Proportional to 170.40, 234.95 and 150.81

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Solution

The fourth proportional to 170.40, 234.95 and 150.81 is: 207.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.40 : 234.95 = 150.81 : x
  2. Step 2: Convert to fraction form
    170.40/234.95 = 150.81/x
  3. Step 3: Cross multiply
    170.40x = 234.95 × 150.81
  4. Step 4: Simplify right side
    170.40x = 35,433.34
  5. Step 5: Solve for x
    x = 35,433.34/170.40
  6. Step 6: Final answer
    x = 207.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.