Home / 221,846.34-306,295.76-131,231.42

Finding the Fourth Proportional to 221,846.34, 306,295.76 and 131,231.42

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Solution

The fourth proportional to 221,846.34, 306,295.76 and 131,231.42 is: 181,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,846.34 : 306,295.76 = 131,231.42 : x
  2. Step 2: Convert to fraction form
    221,846.34/306,295.76 = 131,231.42/x
  3. Step 3: Cross multiply
    221,846.34x = 306,295.76 × 131,231.42
  4. Step 4: Simplify right side
    221,846.34x = 40,195,627,524.78
  5. Step 5: Solve for x
    x = 40,195,627,524.78/221,846.34
  6. Step 6: Final answer
    x = 181,186.80

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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.