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Finding the Fourth Proportional to 504.38, 696.02 and 338.57

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Solution

The fourth proportional to 504.38, 696.02 and 338.57 is: 467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.38 : 696.02 = 338.57 : x
  2. Step 2: Convert to fraction form
    504.38/696.02 = 338.57/x
  3. Step 3: Cross multiply
    504.38x = 696.02 × 338.57
  4. Step 4: Simplify right side
    504.38x = 235,651.49
  5. Step 5: Solve for x
    x = 235,651.49/504.38
  6. Step 6: Final answer
    x = 467.21

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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.