Home / 449,134.20-673,712.10-133,601.40

Finding the Fourth Proportional to 449,134.20, 673,712.10 and 133,601.40

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Solution

The fourth proportional to 449,134.20, 673,712.10 and 133,601.40 is: 200,405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,134.20 : 673,712.10 = 133,601.40 : x
  2. Step 2: Convert to fraction form
    449,134.20/673,712.10 = 133,601.40/x
  3. Step 3: Cross multiply
    449,134.20x = 673,712.10 × 133,601.40
  4. Step 4: Simplify right side
    449,134.20x = 90,008,879,756.94
  5. Step 5: Solve for x
    x = 90,008,879,756.94/449,134.20
  6. Step 6: Final answer
    x = 200,405.31

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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.