Home / 378,140.41-521,827.05-206,059.87

Finding the Fourth Proportional to 378,140.41, 521,827.05 and 206,059.87

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Solution

The fourth proportional to 378,140.41, 521,827.05 and 206,059.87 is: 284,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,140.41 : 521,827.05 = 206,059.87 : x
  2. Step 2: Convert to fraction form
    378,140.41/521,827.05 = 206,059.87/x
  3. Step 3: Cross multiply
    378,140.41x = 521,827.05 × 206,059.87
  4. Step 4: Simplify right side
    378,140.41x = 107,527,614,085.48
  5. Step 5: Solve for x
    x = 107,527,614,085.48/378,140.41
  6. Step 6: Final answer
    x = 284,358.96

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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.