Home / 378,209.82-521,916.30-206,124.24

Finding the Fourth Proportional to 378,209.82, 521,916.30 and 206,124.24

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Solution

The fourth proportional to 378,209.82, 521,916.30 and 206,124.24 is: 284,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,209.82 : 521,916.30 = 206,124.24 : x
  2. Step 2: Convert to fraction form
    378,209.82/521,916.30 = 206,124.24/x
  3. Step 3: Cross multiply
    378,209.82x = 521,916.30 × 206,124.24
  4. Step 4: Simplify right side
    378,209.82x = 107,579,600,681.11
  5. Step 5: Solve for x
    x = 107,579,600,681.11/378,209.82
  6. Step 6: Final answer
    x = 284,444.23

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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.