Home / 269,243.05-403,912.60-89,339.28

Finding the Fourth Proportional to 269,243.05, 403,912.60 and 89,339.28

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Solution

The fourth proportional to 269,243.05, 403,912.60 and 89,339.28 is: 134,024.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,243.05 : 403,912.60 = 89,339.28 : x
  2. Step 2: Convert to fraction form
    269,243.05/403,912.60 = 89,339.28/x
  3. Step 3: Cross multiply
    269,243.05x = 403,912.60 × 89,339.28
  4. Step 4: Simplify right side
    269,243.05x = 36,085,260,866.93
  5. Step 5: Solve for x
    x = 36,085,260,866.93/269,243.05
  6. Step 6: Final answer
    x = 134,024.86

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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.