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Finding the Fourth Proportional to 170.79, 235.63 and 104.37

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Solution

The fourth proportional to 170.79, 235.63 and 104.37 is: 143.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.79 : 235.63 = 104.37 : x
  2. Step 2: Convert to fraction form
    170.79/235.63 = 104.37/x
  3. Step 3: Cross multiply
    170.79x = 235.63 × 104.37
  4. Step 4: Simplify right side
    170.79x = 24,592.70
  5. Step 5: Solve for x
    x = 24,592.70/170.79
  6. Step 6: Final answer
    x = 143.99

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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.