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Finding the Fourth Proportional to 170.44, 235.09 and 148.57

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Solution

The fourth proportional to 170.44, 235.09 and 148.57 is: 204.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.44 : 235.09 = 148.57 : x
  2. Step 2: Convert to fraction form
    170.44/235.09 = 148.57/x
  3. Step 3: Cross multiply
    170.44x = 235.09 × 148.57
  4. Step 4: Simplify right side
    170.44x = 34,927.32
  5. Step 5: Solve for x
    x = 34,927.32/170.44
  6. Step 6: Final answer
    x = 204.92

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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.