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Finding the Fourth Proportional to 190.67, 264.53 and 188.87

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Solution

The fourth proportional to 190.67, 264.53 and 188.87 is: 262.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.67 : 264.53 = 188.87 : x
  2. Step 2: Convert to fraction form
    190.67/264.53 = 188.87/x
  3. Step 3: Cross multiply
    190.67x = 264.53 × 188.87
  4. Step 4: Simplify right side
    190.67x = 49,961.78
  5. Step 5: Solve for x
    x = 49,961.78/190.67
  6. Step 6: Final answer
    x = 262.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.