Home / 397,148.02-548,067.90-215,860.36

Finding the Fourth Proportional to 397,148.02, 548,067.90 and 215,860.36

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Solution

The fourth proportional to 397,148.02, 548,067.90 and 215,860.36 is: 297,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,148.02 : 548,067.90 = 215,860.36 : x
  2. Step 2: Convert to fraction form
    397,148.02/548,067.90 = 215,860.36/x
  3. Step 3: Cross multiply
    397,148.02x = 548,067.90 × 215,860.36
  4. Step 4: Simplify right side
    397,148.02x = 118,306,134,198.44
  5. Step 5: Solve for x
    x = 118,306,134,198.44/397,148.02
  6. Step 6: Final answer
    x = 297,889.27

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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.