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Finding the Fourth Proportional to 303,099.96, 418,280.85 and 167,138.73

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Solution

The fourth proportional to 303,099.96, 418,280.85 and 167,138.73 is: 230,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,099.96 : 418,280.85 = 167,138.73 : x
  2. Step 2: Convert to fraction form
    303,099.96/418,280.85 = 167,138.73/x
  3. Step 3: Cross multiply
    303,099.96x = 418,280.85 × 167,138.73
  4. Step 4: Simplify right side
    303,099.96x = 69,910,930,052.32
  5. Step 5: Solve for x
    x = 69,910,930,052.32/303,099.96
  6. Step 6: Final answer
    x = 230,653.05

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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.