Home / 269,435.03-371,845.22-154,728.70

Finding the Fourth Proportional to 269,435.03, 371,845.22 and 154,728.70

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Solution

The fourth proportional to 269,435.03, 371,845.22 and 154,728.70 is: 213,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,435.03 : 371,845.22 = 154,728.70 : x
  2. Step 2: Convert to fraction form
    269,435.03/371,845.22 = 154,728.70/x
  3. Step 3: Cross multiply
    269,435.03x = 371,845.22 × 154,728.70
  4. Step 4: Simplify right side
    269,435.03x = 57,535,125,788.56
  5. Step 5: Solve for x
    x = 57,535,125,788.56/269,435.03
  6. Step 6: Final answer
    x = 213,539.89

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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.