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Finding the Fourth Proportional to 611.83, 917.47 and 246.36

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Solution

The fourth proportional to 611.83, 917.47 and 246.36 is: 369.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.83 : 917.47 = 246.36 : x
  2. Step 2: Convert to fraction form
    611.83/917.47 = 246.36/x
  3. Step 3: Cross multiply
    611.83x = 917.47 × 246.36
  4. Step 4: Simplify right side
    611.83x = 226,027.91
  5. Step 5: Solve for x
    x = 226,027.91/611.83
  6. Step 6: Final answer
    x = 369.43

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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.