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Finding the Fourth Proportional to 191.13, 288.18 and 176.01

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Solution

The fourth proportional to 191.13, 288.18 and 176.01 is: 265.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.13 : 288.18 = 176.01 : x
  2. Step 2: Convert to fraction form
    191.13/288.18 = 176.01/x
  3. Step 3: Cross multiply
    191.13x = 288.18 × 176.01
  4. Step 4: Simplify right side
    191.13x = 50,722.56
  5. Step 5: Solve for x
    x = 50,722.56/191.13
  6. Step 6: Final answer
    x = 265.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.