Home / 289,949.46-434,936.49-90,273.62

Finding the Fourth Proportional to 289,949.46, 434,936.49 and 90,273.62

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Solution

The fourth proportional to 289,949.46, 434,936.49 and 90,273.62 is: 135,414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,949.46 : 434,936.49 = 90,273.62 : x
  2. Step 2: Convert to fraction form
    289,949.46/434,936.49 = 90,273.62/x
  3. Step 3: Cross multiply
    289,949.46x = 434,936.49 × 90,273.62
  4. Step 4: Simplify right side
    289,949.46x = 39,263,292,171.21
  5. Step 5: Solve for x
    x = 39,263,292,171.21/289,949.46
  6. Step 6: Final answer
    x = 135,414.26

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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.