Home / 269,926.50-405,135.48-143,672.78

Finding the Fourth Proportional to 269,926.50, 405,135.48 and 143,672.78

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Solution

The fourth proportional to 269,926.50, 405,135.48 and 143,672.78 is: 215,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,926.50 : 405,135.48 = 143,672.78 : x
  2. Step 2: Convert to fraction form
    269,926.50/405,135.48 = 143,672.78/x
  3. Step 3: Cross multiply
    269,926.50x = 405,135.48 × 143,672.78
  4. Step 4: Simplify right side
    269,926.50x = 58,206,940,688.23
  5. Step 5: Solve for x
    x = 58,206,940,688.23/269,926.50
  6. Step 6: Final answer
    x = 215,639.96

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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.