Home / 378,838.98-568,414.29-278,151.19

Finding the Fourth Proportional to 378,838.98, 568,414.29 and 278,151.19

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Solution

The fourth proportional to 378,838.98, 568,414.29 and 278,151.19 is: 417,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,838.98 : 568,414.29 = 278,151.19 : x
  2. Step 2: Convert to fraction form
    378,838.98/568,414.29 = 278,151.19/x
  3. Step 3: Cross multiply
    378,838.98x = 568,414.29 × 278,151.19
  4. Step 4: Simplify right side
    378,838.98x = 158,105,111,176.51
  5. Step 5: Solve for x
    x = 158,105,111,176.51/378,838.98
  6. Step 6: Final answer
    x = 417,341.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.