Home / 377,939.69-521,557.50-205,857.13

Finding the Fourth Proportional to 377,939.69, 521,557.50 and 205,857.13

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Solution

The fourth proportional to 377,939.69, 521,557.50 and 205,857.13 is: 284,083.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,939.69 : 521,557.50 = 205,857.13 : x
  2. Step 2: Convert to fraction form
    377,939.69/521,557.50 = 205,857.13/x
  3. Step 3: Cross multiply
    377,939.69x = 521,557.50 × 205,857.13
  4. Step 4: Simplify right side
    377,939.69x = 107,366,327,855.26
  5. Step 5: Solve for x
    x = 107,366,327,855.26/377,939.69
  6. Step 6: Final answer
    x = 284,083.23

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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.