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Finding the Fourth Proportional to 376,359.36, 519,389.28 and 206,606.40

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Solution

The fourth proportional to 376,359.36, 519,389.28 and 206,606.40 is: 285,124.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,359.36 : 519,389.28 = 206,606.40 : x
  2. Step 2: Convert to fraction form
    376,359.36/519,389.28 = 206,606.40/x
  3. Step 3: Cross multiply
    376,359.36x = 519,389.28 × 206,606.40
  4. Step 4: Simplify right side
    376,359.36x = 107,309,149,339.39
  5. Step 5: Solve for x
    x = 107,309,149,339.39/376,359.36
  6. Step 6: Final answer
    x = 285,124.17

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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.