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Finding the Fourth Proportional to 364.69, 502.50 and 277.21

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Solution

The fourth proportional to 364.69, 502.50 and 277.21 is: 381.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.69 : 502.50 = 277.21 : x
  2. Step 2: Convert to fraction form
    364.69/502.50 = 277.21/x
  3. Step 3: Cross multiply
    364.69x = 502.50 × 277.21
  4. Step 4: Simplify right side
    364.69x = 139,298.03
  5. Step 5: Solve for x
    x = 139,298.03/364.69
  6. Step 6: Final answer
    x = 381.96

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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.