Home / 449,137.20-673,716.60-133,604.40

Finding the Fourth Proportional to 449,137.20, 673,716.60 and 133,604.40

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Solution

The fourth proportional to 449,137.20, 673,716.60 and 133,604.40 is: 200,409.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,137.20 : 673,716.60 = 133,604.40 : x
  2. Step 2: Convert to fraction form
    449,137.20/673,716.60 = 133,604.40/x
  3. Step 3: Cross multiply
    449,137.20x = 673,716.60 × 133,604.40
  4. Step 4: Simplify right side
    449,137.20x = 90,011,502,113.04
  5. Step 5: Solve for x
    x = 90,011,502,113.04/449,137.20
  6. Step 6: Final answer
    x = 200,409.81

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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.