Home / 231,960.55-320,113.44-221,331.73

Finding the Fourth Proportional to 231,960.55, 320,113.44 and 221,331.73

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Solution

The fourth proportional to 231,960.55, 320,113.44 and 221,331.73 is: 305,445.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,960.55 : 320,113.44 = 221,331.73 : x
  2. Step 2: Convert to fraction form
    231,960.55/320,113.44 = 221,331.73/x
  3. Step 3: Cross multiply
    231,960.55x = 320,113.44 × 221,331.73
  4. Step 4: Simplify right side
    231,960.55x = 70,851,263,163.47
  5. Step 5: Solve for x
    x = 70,851,263,163.47/231,960.55
  6. Step 6: Final answer
    x = 305,445.31

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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.