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Finding the Fourth Proportional to 351,682.61, 485,293.28 and 206,473.10

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Solution

The fourth proportional to 351,682.61, 485,293.28 and 206,473.10 is: 284,916.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,682.61 : 485,293.28 = 206,473.10 : x
  2. Step 2: Convert to fraction form
    351,682.61/485,293.28 = 206,473.10/x
  3. Step 3: Cross multiply
    351,682.61x = 485,293.28 × 206,473.10
  4. Step 4: Simplify right side
    351,682.61x = 100,200,004,471.94
  5. Step 5: Solve for x
    x = 100,200,004,471.94/351,682.61
  6. Step 6: Final answer
    x = 284,916.01

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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.