Home / 378,141.41-521,828.43-206,060.87

Finding the Fourth Proportional to 378,141.41, 521,828.43 and 206,060.87

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Solution

The fourth proportional to 378,141.41, 521,828.43 and 206,060.87 is: 284,360.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,141.41 : 521,828.43 = 206,060.87 : x
  2. Step 2: Convert to fraction form
    378,141.41/521,828.43 = 206,060.87/x
  3. Step 3: Cross multiply
    378,141.41x = 521,828.43 × 206,060.87
  4. Step 4: Simplify right side
    378,141.41x = 107,528,420,276.53
  5. Step 5: Solve for x
    x = 107,528,420,276.53/378,141.41
  6. Step 6: Final answer
    x = 284,360.34

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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.