Home / 443,382.35-665,166.87-143,839.62

Finding the Fourth Proportional to 443,382.35, 665,166.87 and 143,839.62

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Solution

The fourth proportional to 443,382.35, 665,166.87 and 143,839.62 is: 215,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,382.35 : 665,166.87 = 143,839.62 : x
  2. Step 2: Convert to fraction form
    443,382.35/665,166.87 = 143,839.62/x
  3. Step 3: Cross multiply
    443,382.35x = 665,166.87 × 143,839.62
  4. Step 4: Simplify right side
    443,382.35x = 95,677,349,817.39
  5. Step 5: Solve for x
    x = 95,677,349,817.39/443,382.35
  6. Step 6: Final answer
    x = 215,789.71

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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.