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Finding the Fourth Proportional to 191.04, 265.44 and 188.72

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Solution

The fourth proportional to 191.04, 265.44 and 188.72 is: 262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.04 : 265.44 = 188.72 : x
  2. Step 2: Convert to fraction form
    191.04/265.44 = 188.72/x
  3. Step 3: Cross multiply
    191.04x = 265.44 × 188.72
  4. Step 4: Simplify right side
    191.04x = 50,093.84
  5. Step 5: Solve for x
    x = 50,093.84/191.04
  6. Step 6: Final answer
    x = 262.22

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.