Home / 378,229.14-521,948.75-208,463.27

Finding the Fourth Proportional to 378,229.14, 521,948.75 and 208,463.27

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Solution

The fourth proportional to 378,229.14, 521,948.75 and 208,463.27 is: 287,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,229.14 : 521,948.75 = 208,463.27 : x
  2. Step 2: Convert to fraction form
    378,229.14/521,948.75 = 208,463.27/x
  3. Step 3: Cross multiply
    378,229.14x = 521,948.75 × 208,463.27
  4. Step 4: Simplify right side
    378,229.14x = 108,807,139,545.35
  5. Step 5: Solve for x
    x = 108,807,139,545.35/378,229.14
  6. Step 6: Final answer
    x = 287,675.19

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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.