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Finding the Fourth Proportional to 376.36, 519.44 and 314.09

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Solution

The fourth proportional to 376.36, 519.44 and 314.09 is: 433.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.36 : 519.44 = 314.09 : x
  2. Step 2: Convert to fraction form
    376.36/519.44 = 314.09/x
  3. Step 3: Cross multiply
    376.36x = 519.44 × 314.09
  4. Step 4: Simplify right side
    376.36x = 163,150.91
  5. Step 5: Solve for x
    x = 163,150.91/376.36
  6. Step 6: Final answer
    x = 433.50

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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.