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Finding the Fourth Proportional to 364.72, 503.40 and 249.16

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Solution

The fourth proportional to 364.72, 503.40 and 249.16 is: 343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.72 : 503.40 = 249.16 : x
  2. Step 2: Convert to fraction form
    364.72/503.40 = 249.16/x
  3. Step 3: Cross multiply
    364.72x = 503.40 × 249.16
  4. Step 4: Simplify right side
    364.72x = 125,427.14
  5. Step 5: Solve for x
    x = 125,427.14/364.72
  6. Step 6: Final answer
    x = 343.90

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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.