Home / 221,845.34-306,294.38-131,230.42

Finding the Fourth Proportional to 221,845.34, 306,294.38 and 131,230.42

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Solution

The fourth proportional to 221,845.34, 306,294.38 and 131,230.42 is: 181,185.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,845.34 : 306,294.38 = 131,230.42 : x
  2. Step 2: Convert to fraction form
    221,845.34/306,294.38 = 131,230.42/x
  3. Step 3: Cross multiply
    221,845.34x = 306,294.38 × 131,230.42
  4. Step 4: Simplify right side
    221,845.34x = 40,195,140,131.04
  5. Step 5: Solve for x
    x = 40,195,140,131.04/221,845.34
  6. Step 6: Final answer
    x = 181,185.42

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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.