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Finding the Fourth Proportional to 170.71, 233.93 and 154.30

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Solution

The fourth proportional to 170.71, 233.93 and 154.30 is: 211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.71 : 233.93 = 154.30 : x
  2. Step 2: Convert to fraction form
    170.71/233.93 = 154.30/x
  3. Step 3: Cross multiply
    170.71x = 233.93 × 154.30
  4. Step 4: Simplify right side
    170.71x = 36,096.37
  5. Step 5: Solve for x
    x = 36,096.37/170.71
  6. Step 6: Final answer
    x = 211.45

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.