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Finding the Fourth Proportional to 143.19, 197.01 and 110.39

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Solution

The fourth proportional to 143.19, 197.01 and 110.39 is: 151.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.19 : 197.01 = 110.39 : x
  2. Step 2: Convert to fraction form
    143.19/197.01 = 110.39/x
  3. Step 3: Cross multiply
    143.19x = 197.01 × 110.39
  4. Step 4: Simplify right side
    143.19x = 21,746.89
  5. Step 5: Solve for x
    x = 21,746.89/143.19
  6. Step 6: Final answer
    x = 151.87

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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.