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Finding the Fourth Proportional to 377.16, 520.27 and 266.69

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Solution

The fourth proportional to 377.16, 520.27 and 266.69 is: 367.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.16 : 520.27 = 266.69 : x
  2. Step 2: Convert to fraction form
    377.16/520.27 = 266.69/x
  3. Step 3: Cross multiply
    377.16x = 520.27 × 266.69
  4. Step 4: Simplify right side
    377.16x = 138,752.94
  5. Step 5: Solve for x
    x = 138,752.94/377.16
  6. Step 6: Final answer
    x = 367.89

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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.