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Finding the Fourth Proportional to 191.93, 264.99 and 157.37

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Solution

The fourth proportional to 191.93, 264.99 and 157.37 is: 217.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.93 : 264.99 = 157.37 : x
  2. Step 2: Convert to fraction form
    191.93/264.99 = 157.37/x
  3. Step 3: Cross multiply
    191.93x = 264.99 × 157.37
  4. Step 4: Simplify right side
    191.93x = 41,700.15
  5. Step 5: Solve for x
    x = 41,700.15/191.93
  6. Step 6: Final answer
    x = 217.27

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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.