Home / 307,789.36-424,414.50-200,159.80

Finding the Fourth Proportional to 307,789.36, 424,414.50 and 200,159.80

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Solution

The fourth proportional to 307,789.36, 424,414.50 and 200,159.80 is: 276,002.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,789.36 : 424,414.50 = 200,159.80 : x
  2. Step 2: Convert to fraction form
    307,789.36/424,414.50 = 200,159.80/x
  3. Step 3: Cross multiply
    307,789.36x = 424,414.50 × 200,159.80
  4. Step 4: Simplify right side
    307,789.36x = 84,950,721,437.10
  5. Step 5: Solve for x
    x = 84,950,721,437.10/307,789.36
  6. Step 6: Final answer
    x = 276,002.79

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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.