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Finding the Fourth Proportional to 403.38, 601.73 and 354.17

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Solution

The fourth proportional to 403.38, 601.73 and 354.17 is: 528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.38 : 601.73 = 354.17 : x
  2. Step 2: Convert to fraction form
    403.38/601.73 = 354.17/x
  3. Step 3: Cross multiply
    403.38x = 601.73 × 354.17
  4. Step 4: Simplify right side
    403.38x = 213,115.78
  5. Step 5: Solve for x
    x = 213,115.78/403.38
  6. Step 6: Final answer
    x = 528.33

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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.