Home / 397,740.32-548,893.98-225,665.49

Finding the Fourth Proportional to 397,740.32, 548,893.98 and 225,665.49

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Solution

The fourth proportional to 397,740.32, 548,893.98 and 225,665.49 is: 311,425.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,740.32 : 548,893.98 = 225,665.49 : x
  2. Step 2: Convert to fraction form
    397,740.32/548,893.98 = 225,665.49/x
  3. Step 3: Cross multiply
    397,740.32x = 548,893.98 × 225,665.49
  4. Step 4: Simplify right side
    397,740.32x = 123,866,427,826.42
  5. Step 5: Solve for x
    x = 123,866,427,826.42/397,740.32
  6. Step 6: Final answer
    x = 311,425.37

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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.