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Finding the Fourth Proportional to 443,379.48, 665,162.58 and 143,836.62

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Solution

The fourth proportional to 443,379.48, 665,162.58 and 143,836.62 is: 215,785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,379.48 : 665,162.58 = 143,836.62 : x
  2. Step 2: Convert to fraction form
    443,379.48/665,162.58 = 143,836.62/x
  3. Step 3: Cross multiply
    443,379.48x = 665,162.58 × 143,836.62
  4. Step 4: Simplify right side
    443,379.48x = 95,674,737,257.68
  5. Step 5: Solve for x
    x = 95,674,737,257.68/443,379.48
  6. Step 6: Final answer
    x = 215,785.22

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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.