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Finding the Fourth Proportional to 427.17, 588.41 and 344.05

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Solution

The fourth proportional to 427.17, 588.41 and 344.05 is: 473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    427.17 : 588.41 = 344.05 : x
  2. Step 2: Convert to fraction form
    427.17/588.41 = 344.05/x
  3. Step 3: Cross multiply
    427.17x = 588.41 × 344.05
  4. Step 4: Simplify right side
    427.17x = 202,442.49
  5. Step 5: Solve for x
    x = 202,442.49/427.17
  6. Step 6: Final answer
    x = 473.91

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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.