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Finding the Fourth Proportional to 303,879.76, 419,358.50 and 167,916.85

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Solution

The fourth proportional to 303,879.76, 419,358.50 and 167,916.85 is: 231,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,879.76 : 419,358.50 = 167,916.85 : x
  2. Step 2: Convert to fraction form
    303,879.76/419,358.50 = 167,916.85/x
  3. Step 3: Cross multiply
    303,879.76x = 419,358.50 × 167,916.85
  4. Step 4: Simplify right side
    303,879.76x = 70,417,358,340.73
  5. Step 5: Solve for x
    x = 70,417,358,340.73/303,879.76
  6. Step 6: Final answer
    x = 231,727.70

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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.