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Finding the Fourth Proportional to 196.86, 295.35 and 88.74

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Solution

The fourth proportional to 196.86, 295.35 and 88.74 is: 133.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.86 : 295.35 = 88.74 : x
  2. Step 2: Convert to fraction form
    196.86/295.35 = 88.74/x
  3. Step 3: Cross multiply
    196.86x = 295.35 × 88.74
  4. Step 4: Simplify right side
    196.86x = 26,209.36
  5. Step 5: Solve for x
    x = 26,209.36/196.86
  6. Step 6: Final answer
    x = 133.14

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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.