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Finding the Fourth Proportional to 215,234.18, 322,850.19 and 55,309.94

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Solution

The fourth proportional to 215,234.18, 322,850.19 and 55,309.94 is: 82,964.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,234.18 : 322,850.19 = 55,309.94 : x
  2. Step 2: Convert to fraction form
    215,234.18/322,850.19 = 55,309.94/x
  3. Step 3: Cross multiply
    215,234.18x = 322,850.19 × 55,309.94
  4. Step 4: Simplify right side
    215,234.18x = 17,856,824,637.89
  5. Step 5: Solve for x
    x = 17,856,824,637.89/215,234.18
  6. Step 6: Final answer
    x = 82,964.63

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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.