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Finding the Fourth Proportional to 191.73, 288.64 and 174.72

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Solution

The fourth proportional to 191.73, 288.64 and 174.72 is: 263.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.73 : 288.64 = 174.72 : x
  2. Step 2: Convert to fraction form
    191.73/288.64 = 174.72/x
  3. Step 3: Cross multiply
    191.73x = 288.64 × 174.72
  4. Step 4: Simplify right side
    191.73x = 50,431.18
  5. Step 5: Solve for x
    x = 50,431.18/191.73
  6. Step 6: Final answer
    x = 263.03

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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.