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Finding the Fourth Proportional to 191.27, 287.93 and 174.26

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Solution

The fourth proportional to 191.27, 287.93 and 174.26 is: 262.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.27 : 287.93 = 174.26 : x
  2. Step 2: Convert to fraction form
    191.27/287.93 = 174.26/x
  3. Step 3: Cross multiply
    191.27x = 287.93 × 174.26
  4. Step 4: Simplify right side
    191.27x = 50,173.24
  5. Step 5: Solve for x
    x = 50,173.24/191.27
  6. Step 6: Final answer
    x = 262.32

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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.