Home / 397,454.72-548,487.12-227,689.52

Finding the Fourth Proportional to 397,454.72, 548,487.12 and 227,689.52

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Solution

The fourth proportional to 397,454.72, 548,487.12 and 227,689.52 is: 314,211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,454.72 : 548,487.12 = 227,689.52 : x
  2. Step 2: Convert to fraction form
    397,454.72/548,487.12 = 227,689.52/x
  3. Step 3: Cross multiply
    397,454.72x = 548,487.12 × 227,689.52
  4. Step 4: Simplify right side
    397,454.72x = 124,884,769,078.98
  5. Step 5: Solve for x
    x = 124,884,769,078.98/397,454.72
  6. Step 6: Final answer
    x = 314,211.31

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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.