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Finding the Fourth Proportional to 143,814.31, 215,818.67 and 50,320.87

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Solution

The fourth proportional to 143,814.31, 215,818.67 and 50,320.87 is: 75,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,814.31 : 215,818.67 = 50,320.87 : x
  2. Step 2: Convert to fraction form
    143,814.31/215,818.67 = 50,320.87/x
  3. Step 3: Cross multiply
    143,814.31x = 215,818.67 × 50,320.87
  4. Step 4: Simplify right side
    143,814.31x = 10,860,183,236.64
  5. Step 5: Solve for x
    x = 10,860,183,236.64/143,814.31
  6. Step 6: Final answer
    x = 75,515.32

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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.