Home / 397,211.05-548,017.83-225,115.50

Finding the Fourth Proportional to 397,211.05, 548,017.83 and 225,115.50

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Solution

The fourth proportional to 397,211.05, 548,017.83 and 225,115.50 is: 310,583.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,211.05 : 548,017.83 = 225,115.50 : x
  2. Step 2: Convert to fraction form
    397,211.05/548,017.83 = 225,115.50/x
  3. Step 3: Cross multiply
    397,211.05x = 548,017.83 × 225,115.50
  4. Step 4: Simplify right side
    397,211.05x = 123,367,306,683.79
  5. Step 5: Solve for x
    x = 123,367,306,683.79/397,211.05
  6. Step 6: Final answer
    x = 310,583.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.