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Finding the Fourth Proportional to 399.85, 596.87 and 351.25

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Solution

The fourth proportional to 399.85, 596.87 and 351.25 is: 524.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.85 : 596.87 = 351.25 : x
  2. Step 2: Convert to fraction form
    399.85/596.87 = 351.25/x
  3. Step 3: Cross multiply
    399.85x = 596.87 × 351.25
  4. Step 4: Simplify right side
    399.85x = 209,650.59
  5. Step 5: Solve for x
    x = 209,650.59/399.85
  6. Step 6: Final answer
    x = 524.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.