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Finding the Fourth Proportional to 352,850.78, 486,826.81 and 199,864.67

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Solution

The fourth proportional to 352,850.78, 486,826.81 and 199,864.67 is: 275,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,850.78 : 486,826.81 = 199,864.67 : x
  2. Step 2: Convert to fraction form
    352,850.78/486,826.81 = 199,864.67/x
  3. Step 3: Cross multiply
    352,850.78x = 486,826.81 × 199,864.67
  4. Step 4: Simplify right side
    352,850.78x = 97,299,476,794.01
  5. Step 5: Solve for x
    x = 97,299,476,794.01/352,850.78
  6. Step 6: Final answer
    x = 275,752.48

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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.