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Finding the Fourth Proportional to 143,310.21, 214,965.30 and 44,814.21

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Solution

The fourth proportional to 143,310.21, 214,965.30 and 44,814.21 is: 67,221.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,310.21 : 214,965.30 = 44,814.21 : x
  2. Step 2: Convert to fraction form
    143,310.21/214,965.30 = 44,814.21/x
  3. Step 3: Cross multiply
    143,310.21x = 214,965.30 × 44,814.21
  4. Step 4: Simplify right side
    143,310.21x = 9,633,500,096.91
  5. Step 5: Solve for x
    x = 9,633,500,096.91/143,310.21
  6. Step 6: Final answer
    x = 67,221.31

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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.