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Finding the Fourth Proportional to 403.50, 604.26 and 372

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Solution

The fourth proportional to 403.50, 604.26 and 372 is: 557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.50 : 604.26 = 372 : x
  2. Step 2: Convert to fraction form
    403.50/604.26 = 372/x
  3. Step 3: Cross multiply
    403.50x = 604.26 × 372
  4. Step 4: Simplify right side
    403.50x = 224,784.72
  5. Step 5: Solve for x
    x = 224,784.72/403.50
  6. Step 6: Final answer
    x = 557.09

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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.