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Finding the Fourth Proportional to 314.67, 434.01 and 190.27

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Solution

The fourth proportional to 314.67, 434.01 and 190.27 is: 262.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.67 : 434.01 = 190.27 : x
  2. Step 2: Convert to fraction form
    314.67/434.01 = 190.27/x
  3. Step 3: Cross multiply
    314.67x = 434.01 × 190.27
  4. Step 4: Simplify right side
    314.67x = 82,579.08
  5. Step 5: Solve for x
    x = 82,579.08/314.67
  6. Step 6: Final answer
    x = 262.43

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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.