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Finding the Fourth Proportional to 427.46, 588.22 and 414.80

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Solution

The fourth proportional to 427.46, 588.22 and 414.80 is: 570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    427.46 : 588.22 = 414.80 : x
  2. Step 2: Convert to fraction form
    427.46/588.22 = 414.80/x
  3. Step 3: Cross multiply
    427.46x = 588.22 × 414.80
  4. Step 4: Simplify right side
    427.46x = 243,993.66
  5. Step 5: Solve for x
    x = 243,993.66/427.46
  6. Step 6: Final answer
    x = 570.80

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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.