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Finding the Fourth Proportional to 143,222.22, 214,833.42 and 54,455.22

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Solution

The fourth proportional to 143,222.22, 214,833.42 and 54,455.22 is: 81,682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,222.22 : 214,833.42 = 54,455.22 : x
  2. Step 2: Convert to fraction form
    143,222.22/214,833.42 = 54,455.22/x
  3. Step 3: Cross multiply
    143,222.22x = 214,833.42 × 54,455.22
  4. Step 4: Simplify right side
    143,222.22x = 11,698,801,149.45
  5. Step 5: Solve for x
    x = 11,698,801,149.45/143,222.22
  6. Step 6: Final answer
    x = 81,682.86

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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.