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Finding the Fourth Proportional to 196.51, 294.80 and 93.81

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Solution

The fourth proportional to 196.51, 294.80 and 93.81 is: 140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.51 : 294.80 = 93.81 : x
  2. Step 2: Convert to fraction form
    196.51/294.80 = 93.81/x
  3. Step 3: Cross multiply
    196.51x = 294.80 × 93.81
  4. Step 4: Simplify right side
    196.51x = 27,655.19
  5. Step 5: Solve for x
    x = 27,655.19/196.51
  6. Step 6: Final answer
    x = 140.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.