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Finding the Fourth Proportional to 377.71, 566.91 and 262.21

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Solution

The fourth proportional to 377.71, 566.91 and 262.21 is: 393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.71 : 566.91 = 262.21 : x
  2. Step 2: Convert to fraction form
    377.71/566.91 = 262.21/x
  3. Step 3: Cross multiply
    377.71x = 566.91 × 262.21
  4. Step 4: Simplify right side
    377.71x = 148,647.07
  5. Step 5: Solve for x
    x = 148,647.07/377.71
  6. Step 6: Final answer
    x = 393.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.