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Finding the Fourth Proportional to 191.76, 285.99 and 176.04

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Solution

The fourth proportional to 191.76, 285.99 and 176.04 is: 262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.76 : 285.99 = 176.04 : x
  2. Step 2: Convert to fraction form
    191.76/285.99 = 176.04/x
  3. Step 3: Cross multiply
    191.76x = 285.99 × 176.04
  4. Step 4: Simplify right side
    191.76x = 50,345.68
  5. Step 5: Solve for x
    x = 50,345.68/191.76
  6. Step 6: Final answer
    x = 262.55

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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.