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Finding the Fourth Proportional to 190.03, 262.25 and 124.54

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Solution

The fourth proportional to 190.03, 262.25 and 124.54 is: 171.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.03 : 262.25 = 124.54 : x
  2. Step 2: Convert to fraction form
    190.03/262.25 = 124.54/x
  3. Step 3: Cross multiply
    190.03x = 262.25 × 124.54
  4. Step 4: Simplify right side
    190.03x = 32,659.65
  5. Step 5: Solve for x
    x = 32,659.65/190.03
  6. Step 6: Final answer
    x = 171.86

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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.