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Finding the Fourth Proportional to 554.63, 831.92 and 164.61

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Solution

The fourth proportional to 554.63, 831.92 and 164.61 is: 246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.63 : 831.92 = 164.61 : x
  2. Step 2: Convert to fraction form
    554.63/831.92 = 164.61/x
  3. Step 3: Cross multiply
    554.63x = 831.92 × 164.61
  4. Step 4: Simplify right side
    554.63x = 136,941.53
  5. Step 5: Solve for x
    x = 136,941.53/554.63
  6. Step 6: Final answer
    x = 246.91

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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.