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Finding the Fourth Proportional to 436.72, 603.02 and 338.30

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Solution

The fourth proportional to 436.72, 603.02 and 338.30 is: 467.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.72 : 603.02 = 338.30 : x
  2. Step 2: Convert to fraction form
    436.72/603.02 = 338.30/x
  3. Step 3: Cross multiply
    436.72x = 603.02 × 338.30
  4. Step 4: Simplify right side
    436.72x = 203,999.97
  5. Step 5: Solve for x
    x = 203,999.97/436.72
  6. Step 6: Final answer
    x = 467.12

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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.