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Finding the Fourth Proportional to 303,794.20, 455,035.20 and 264,428.20

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Solution

The fourth proportional to 303,794.20, 455,035.20 and 264,428.20 is: 396,071.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,794.20 : 455,035.20 = 264,428.20 : x
  2. Step 2: Convert to fraction form
    303,794.20/455,035.20 = 264,428.20/x
  3. Step 3: Cross multiply
    303,794.20x = 455,035.20 × 264,428.20
  4. Step 4: Simplify right side
    303,794.20x = 120,324,138,872.64
  5. Step 5: Solve for x
    x = 120,324,138,872.64/303,794.20
  6. Step 6: Final answer
    x = 396,071.22

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1.5x scale

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.