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Finding the Fourth Proportional to 554.39, 831.21 and 246.09

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Solution

The fourth proportional to 554.39, 831.21 and 246.09 is: 368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.39 : 831.21 = 246.09 : x
  2. Step 2: Convert to fraction form
    554.39/831.21 = 246.09/x
  3. Step 3: Cross multiply
    554.39x = 831.21 × 246.09
  4. Step 4: Simplify right side
    554.39x = 204,551.37
  5. Step 5: Solve for x
    x = 204,551.37/554.39
  6. Step 6: Final answer
    x = 368.96

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Why These Related Problems?

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