Home / 442,942.80-664,519.80-143,423.50

Finding the Fourth Proportional to 442,942.80, 664,519.80 and 143,423.50

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Solution

The fourth proportional to 442,942.80, 664,519.80 and 143,423.50 is: 215,169.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,942.80 : 664,519.80 = 143,423.50 : x
  2. Step 2: Convert to fraction form
    442,942.80/664,519.80 = 143,423.50/x
  3. Step 3: Cross multiply
    442,942.80x = 664,519.80 × 143,423.50
  4. Step 4: Simplify right side
    442,942.80x = 95,307,755,535.30
  5. Step 5: Solve for x
    x = 95,307,755,535.30/442,942.80
  6. Step 6: Final answer
    x = 215,169.44

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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.