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Finding the Fourth Proportional to 170.48, 235.26 and 112.37

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Solution

The fourth proportional to 170.48, 235.26 and 112.37 is: 155.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.48 : 235.26 = 112.37 : x
  2. Step 2: Convert to fraction form
    170.48/235.26 = 112.37/x
  3. Step 3: Cross multiply
    170.48x = 235.26 × 112.37
  4. Step 4: Simplify right side
    170.48x = 26,436.17
  5. Step 5: Solve for x
    x = 26,436.17/170.48
  6. Step 6: Final answer
    x = 155.07

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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.