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Finding the Fourth Proportional to 611.96, 918.06 and 246.71

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Solution

The fourth proportional to 611.96, 918.06 and 246.71 is: 370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.96 : 918.06 = 246.71 : x
  2. Step 2: Convert to fraction form
    611.96/918.06 = 246.71/x
  3. Step 3: Cross multiply
    611.96x = 918.06 × 246.71
  4. Step 4: Simplify right side
    611.96x = 226,494.58
  5. Step 5: Solve for x
    x = 226,494.58/611.96
  6. Step 6: Final answer
    x = 370.11

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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.