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Finding the Fourth Proportional to 369.81, 507.61 and 327.43

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Solution

The fourth proportional to 369.81, 507.61 and 327.43 is: 449.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.81 : 507.61 = 327.43 : x
  2. Step 2: Convert to fraction form
    369.81/507.61 = 327.43/x
  3. Step 3: Cross multiply
    369.81x = 507.61 × 327.43
  4. Step 4: Simplify right side
    369.81x = 166,206.74
  5. Step 5: Solve for x
    x = 166,206.74/369.81
  6. Step 6: Final answer
    x = 449.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.