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Finding the Fourth Proportional to 381,333.28, 526,316.52 and 220,214.56

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Solution

The fourth proportional to 381,333.28, 526,316.52 and 220,214.56 is: 303,940.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,333.28 : 526,316.52 = 220,214.56 : x
  2. Step 2: Convert to fraction form
    381,333.28/526,316.52 = 220,214.56/x
  3. Step 3: Cross multiply
    381,333.28x = 526,316.52 × 220,214.56
  4. Step 4: Simplify right side
    381,333.28x = 115,902,560,872.53
  5. Step 5: Solve for x
    x = 115,902,560,872.53/381,333.28
  6. Step 6: Final answer
    x = 303,940.32

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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.