Home / 442,669.20-664,090.20-189,949.20

Finding the Fourth Proportional to 442,669.20, 664,090.20 and 189,949.20

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Solution

The fourth proportional to 442,669.20, 664,090.20 and 189,949.20 is: 284,960.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,669.20 : 664,090.20 = 189,949.20 : x
  2. Step 2: Convert to fraction form
    442,669.20/664,090.20 = 189,949.20/x
  3. Step 3: Cross multiply
    442,669.20x = 664,090.20 × 189,949.20
  4. Step 4: Simplify right side
    442,669.20x = 126,143,402,217.84
  5. Step 5: Solve for x
    x = 126,143,402,217.84/442,669.20
  6. Step 6: Final answer
    x = 284,960.87

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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.