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Finding the Fourth Proportional to 376.21, 519.15 and 245.13

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Solution

The fourth proportional to 376.21, 519.15 and 245.13 is: 338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.21 : 519.15 = 245.13 : x
  2. Step 2: Convert to fraction form
    376.21/519.15 = 245.13/x
  3. Step 3: Cross multiply
    376.21x = 519.15 × 245.13
  4. Step 4: Simplify right side
    376.21x = 127,259.24
  5. Step 5: Solve for x
    x = 127,259.24/376.21
  6. Step 6: Final answer
    x = 338.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.