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Finding the Fourth Proportional to 426.79, 588.91 and 240.27

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Solution

The fourth proportional to 426.79, 588.91 and 240.27 is: 331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    426.79 : 588.91 = 240.27 : x
  2. Step 2: Convert to fraction form
    426.79/588.91 = 240.27/x
  3. Step 3: Cross multiply
    426.79x = 588.91 × 240.27
  4. Step 4: Simplify right side
    426.79x = 141,497.41
  5. Step 5: Solve for x
    x = 141,497.41/426.79
  6. Step 6: Final answer
    x = 331.54

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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.