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Finding the Fourth Proportional to 191.01, 287.55 and 174

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Solution

The fourth proportional to 191.01, 287.55 and 174 is: 261.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.01 : 287.55 = 174 : x
  2. Step 2: Convert to fraction form
    191.01/287.55 = 174/x
  3. Step 3: Cross multiply
    191.01x = 287.55 × 174
  4. Step 4: Simplify right side
    191.01x = 50,033.70
  5. Step 5: Solve for x
    x = 50,033.70/191.01
  6. Step 6: Final answer
    x = 261.94

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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.