Home / 443,267.80-664,995.12-143,725.03

Finding the Fourth Proportional to 443,267.80, 664,995.12 and 143,725.03

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Solution

The fourth proportional to 443,267.80, 664,995.12 and 143,725.03 is: 215,617.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,267.80 : 664,995.12 = 143,725.03 : x
  2. Step 2: Convert to fraction form
    443,267.80/664,995.12 = 143,725.03/x
  3. Step 3: Cross multiply
    443,267.80x = 664,995.12 × 143,725.03
  4. Step 4: Simplify right side
    443,267.80x = 95,576,441,370.40
  5. Step 5: Solve for x
    x = 95,576,441,370.40/443,267.80
  6. Step 6: Final answer
    x = 215,617.83

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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.