Home / 397,270.18-548,243.66-215,994.31

Finding the Fourth Proportional to 397,270.18, 548,243.66 and 215,994.31

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Solution

The fourth proportional to 397,270.18, 548,243.66 and 215,994.31 is: 298,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,270.18 : 548,243.66 = 215,994.31 : x
  2. Step 2: Convert to fraction form
    397,270.18/548,243.66 = 215,994.31/x
  3. Step 3: Cross multiply
    397,270.18x = 548,243.66 × 215,994.31
  4. Step 4: Simplify right side
    397,270.18x = 118,417,511,053.58
  5. Step 5: Solve for x
    x = 118,417,511,053.58/397,270.18
  6. Step 6: Final answer
    x = 298,078.03

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1.5x scale

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.