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Finding the Fourth Proportional to 523,072.20, 784,608.30 and 168,122.10

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Solution

The fourth proportional to 523,072.20, 784,608.30 and 168,122.10 is: 252,183.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,072.20 : 784,608.30 = 168,122.10 : x
  2. Step 2: Convert to fraction form
    523,072.20/784,608.30 = 168,122.10/x
  3. Step 3: Cross multiply
    523,072.20x = 784,608.30 × 168,122.10
  4. Step 4: Simplify right side
    523,072.20x = 131,909,995,073.43
  5. Step 5: Solve for x
    x = 131,909,995,073.43/523,072.20
  6. Step 6: Final answer
    x = 252,183.15

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Similar ratio
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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.