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Finding the Fourth Proportional to 191.41, 285.75 and 168.10

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Solution

The fourth proportional to 191.41, 285.75 and 168.10 is: 250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.41 : 285.75 = 168.10 : x
  2. Step 2: Convert to fraction form
    191.41/285.75 = 168.10/x
  3. Step 3: Cross multiply
    191.41x = 285.75 × 168.10
  4. Step 4: Simplify right side
    191.41x = 48,033.86
  5. Step 5: Solve for x
    x = 48,033.86/191.41
  6. Step 6: Final answer
    x = 250.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.