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Finding the Fourth Proportional to 376.62, 519.93 and 266.19

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Solution

The fourth proportional to 376.62, 519.93 and 266.19 is: 367.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.62 : 519.93 = 266.19 : x
  2. Step 2: Convert to fraction form
    376.62/519.93 = 266.19/x
  3. Step 3: Cross multiply
    376.62x = 519.93 × 266.19
  4. Step 4: Simplify right side
    376.62x = 138,400.17
  5. Step 5: Solve for x
    x = 138,400.17/376.62
  6. Step 6: Final answer
    x = 367.48

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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.