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Finding the Fourth Proportional to 170.26, 235.02 and 112.06

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Solution

The fourth proportional to 170.26, 235.02 and 112.06 is: 154.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.26 : 235.02 = 112.06 : x
  2. Step 2: Convert to fraction form
    170.26/235.02 = 112.06/x
  3. Step 3: Cross multiply
    170.26x = 235.02 × 112.06
  4. Step 4: Simplify right side
    170.26x = 26,336.34
  5. Step 5: Solve for x
    x = 26,336.34/170.26
  6. Step 6: Final answer
    x = 154.68

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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.