Home / 385,311.06-577,586.97-225,183.78

Finding the Fourth Proportional to 385,311.06, 577,586.97 and 225,183.78

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Solution

The fourth proportional to 385,311.06, 577,586.97 and 225,183.78 is: 337,553.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,311.06 : 577,586.97 = 225,183.78 : x
  2. Step 2: Convert to fraction form
    385,311.06/577,586.97 = 225,183.78/x
  3. Step 3: Cross multiply
    385,311.06x = 577,586.97 × 225,183.78
  4. Step 4: Simplify right side
    385,311.06x = 130,063,217,183.35
  5. Step 5: Solve for x
    x = 130,063,217,183.35/385,311.06
  6. Step 6: Final answer
    x = 337,553.81

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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.