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Finding the Fourth Proportional to 364.43, 546.79 and 218.46

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Solution

The fourth proportional to 364.43, 546.79 and 218.46 is: 327.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.43 : 546.79 = 218.46 : x
  2. Step 2: Convert to fraction form
    364.43/546.79 = 218.46/x
  3. Step 3: Cross multiply
    364.43x = 546.79 × 218.46
  4. Step 4: Simplify right side
    364.43x = 119,448.46
  5. Step 5: Solve for x
    x = 119,448.46/364.43
  6. Step 6: Final answer
    x = 327.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.