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Finding the Fourth Proportional to 538.04, 742.97 and 339.19

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Solution

The fourth proportional to 538.04, 742.97 and 339.19 is: 468.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.04 : 742.97 = 339.19 : x
  2. Step 2: Convert to fraction form
    538.04/742.97 = 339.19/x
  3. Step 3: Cross multiply
    538.04x = 742.97 × 339.19
  4. Step 4: Simplify right side
    538.04x = 252,006.98
  5. Step 5: Solve for x
    x = 252,006.98/538.04
  6. Step 6: Final answer
    x = 468.38

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Double scale
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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.