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Finding the Fourth Proportional to 304,105.10, 419,648.09 and 168,131.11

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Solution

The fourth proportional to 304,105.10, 419,648.09 and 168,131.11 is: 232,011.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,105.10 : 419,648.09 = 168,131.11 : x
  2. Step 2: Convert to fraction form
    304,105.10/419,648.09 = 168,131.11/x
  3. Step 3: Cross multiply
    304,105.10x = 419,648.09 × 168,131.11
  4. Step 4: Simplify right side
    304,105.10x = 70,555,897,253.49
  5. Step 5: Solve for x
    x = 70,555,897,253.49/304,105.10
  6. Step 6: Final answer
    x = 232,011.56

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1.5x scale

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.