Home / 397,261.32-548,231.04-215,985.48

Finding the Fourth Proportional to 397,261.32, 548,231.04 and 215,985.48

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Solution

The fourth proportional to 397,261.32, 548,231.04 and 215,985.48 is: 298,065.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,261.32 : 548,231.04 = 215,985.48 : x
  2. Step 2: Convert to fraction form
    397,261.32/548,231.04 = 215,985.48/x
  3. Step 3: Cross multiply
    397,261.32x = 548,231.04 × 215,985.48
  4. Step 4: Simplify right side
    397,261.32x = 118,409,944,325.30
  5. Step 5: Solve for x
    x = 118,409,944,325.30/397,261.32
  6. Step 6: Final answer
    x = 298,065.63

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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.