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Finding the Fourth Proportional to 364.25, 502.73 and 206.90

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Solution

The fourth proportional to 364.25, 502.73 and 206.90 is: 285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.25 : 502.73 = 206.90 : x
  2. Step 2: Convert to fraction form
    364.25/502.73 = 206.90/x
  3. Step 3: Cross multiply
    364.25x = 502.73 × 206.90
  4. Step 4: Simplify right side
    364.25x = 104,012.84
  5. Step 5: Solve for x
    x = 104,012.84/364.25
  6. Step 6: Final answer
    x = 285.55

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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.