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Finding the Fourth Proportional to 418,087.62, 576,960.45 and 227,099.67

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Solution

The fourth proportional to 418,087.62, 576,960.45 and 227,099.67 is: 313,397.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,087.62 : 576,960.45 = 227,099.67 : x
  2. Step 2: Convert to fraction form
    418,087.62/576,960.45 = 227,099.67/x
  3. Step 3: Cross multiply
    418,087.62x = 576,960.45 × 227,099.67
  4. Step 4: Simplify right side
    418,087.62x = 131,027,527,798.05
  5. Step 5: Solve for x
    x = 131,027,527,798.05/418,087.62
  6. Step 6: Final answer
    x = 313,397.29

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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.