Home / 307,974.54-421,917.97-296,461.15

Finding the Fourth Proportional to 307,974.54, 421,917.97 and 296,461.15

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Solution

The fourth proportional to 307,974.54, 421,917.97 and 296,461.15 is: 406,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,974.54 : 421,917.97 = 296,461.15 : x
  2. Step 2: Convert to fraction form
    307,974.54/421,917.97 = 296,461.15/x
  3. Step 3: Cross multiply
    307,974.54x = 421,917.97 × 296,461.15
  4. Step 4: Simplify right side
    307,974.54x = 125,082,286,591.87
  5. Step 5: Solve for x
    x = 125,082,286,591.87/307,974.54
  6. Step 6: Final answer
    x = 406,144.89

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.