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Finding the Fourth Proportional to 400.35, 600.06 and 354.78

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Solution

The fourth proportional to 400.35, 600.06 and 354.78 is: 531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.35 : 600.06 = 354.78 : x
  2. Step 2: Convert to fraction form
    400.35/600.06 = 354.78/x
  3. Step 3: Cross multiply
    400.35x = 600.06 × 354.78
  4. Step 4: Simplify right side
    400.35x = 212,889.29
  5. Step 5: Solve for x
    x = 212,889.29/400.35
  6. Step 6: Final answer
    x = 531.76

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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.