Home / 221,938.56-306,251.20-131,297.92

Finding the Fourth Proportional to 221,938.56, 306,251.20 and 131,297.92

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Solution

The fourth proportional to 221,938.56, 306,251.20 and 131,297.92 is: 181,176.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,938.56 : 306,251.20 = 131,297.92 : x
  2. Step 2: Convert to fraction form
    221,938.56/306,251.20 = 131,297.92/x
  3. Step 3: Cross multiply
    221,938.56x = 306,251.20 × 131,297.92
  4. Step 4: Simplify right side
    221,938.56x = 40,210,145,557.50
  5. Step 5: Solve for x
    x = 40,210,145,557.50/221,938.56
  6. Step 6: Final answer
    x = 181,176.92

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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.