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Finding the Fourth Proportional to 191.99, 264.93 and 107.96

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Solution

The fourth proportional to 191.99, 264.93 and 107.96 is: 148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.99 : 264.93 = 107.96 : x
  2. Step 2: Convert to fraction form
    191.99/264.93 = 107.96/x
  3. Step 3: Cross multiply
    191.99x = 264.93 × 107.96
  4. Step 4: Simplify right side
    191.99x = 28,601.84
  5. Step 5: Solve for x
    x = 28,601.84/191.99
  6. Step 6: Final answer
    x = 148.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.