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Finding the Fourth Proportional to 342.01, 471.91 and 194.65

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Solution

The fourth proportional to 342.01, 471.91 and 194.65 is: 268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.01 : 471.91 = 194.65 : x
  2. Step 2: Convert to fraction form
    342.01/471.91 = 194.65/x
  3. Step 3: Cross multiply
    342.01x = 471.91 × 194.65
  4. Step 4: Simplify right side
    342.01x = 91,857.28
  5. Step 5: Solve for x
    x = 91,857.28/342.01
  6. Step 6: Final answer
    x = 268.58

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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.