Home / 442,921.09-664,487.45-143,401.99

Finding the Fourth Proportional to 442,921.09, 664,487.45 and 143,401.99

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Solution

The fourth proportional to 442,921.09, 664,487.45 and 143,401.99 is: 215,137.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,921.09 : 664,487.45 = 143,401.99 : x
  2. Step 2: Convert to fraction form
    442,921.09/664,487.45 = 143,401.99/x
  3. Step 3: Cross multiply
    442,921.09x = 664,487.45 × 143,401.99
  4. Step 4: Simplify right side
    442,921.09x = 95,288,818,620.58
  5. Step 5: Solve for x
    x = 95,288,818,620.58/442,921.09
  6. Step 6: Final answer
    x = 215,137.24

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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.