Home / 315,944.20-473,916.30-221,465.80

Finding the Fourth Proportional to 315,944.20, 473,916.30 and 221,465.80

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Solution

The fourth proportional to 315,944.20, 473,916.30 and 221,465.80 is: 332,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,944.20 : 473,916.30 = 221,465.80 : x
  2. Step 2: Convert to fraction form
    315,944.20/473,916.30 = 221,465.80/x
  3. Step 3: Cross multiply
    315,944.20x = 473,916.30 × 221,465.80
  4. Step 4: Simplify right side
    315,944.20x = 104,956,252,512.54
  5. Step 5: Solve for x
    x = 104,956,252,512.54/315,944.20
  6. Step 6: Final answer
    x = 332,198.70

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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.