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Finding the Fourth Proportional to 303,974.63, 419,506.70 and 168,005.66

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Solution

The fourth proportional to 303,974.63, 419,506.70 and 168,005.66 is: 231,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,974.63 : 419,506.70 = 168,005.66 : x
  2. Step 2: Convert to fraction form
    303,974.63/419,506.70 = 168,005.66/x
  3. Step 3: Cross multiply
    303,974.63x = 419,506.70 × 168,005.66
  4. Step 4: Simplify right side
    303,974.63x = 70,479,500,007.92
  5. Step 5: Solve for x
    x = 70,479,500,007.92/303,974.63
  6. Step 6: Final answer
    x = 231,859.81

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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.