Home / 221,901.92-306,201.03-131,261.30

Finding the Fourth Proportional to 221,901.92, 306,201.03 and 131,261.30

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Solution

The fourth proportional to 221,901.92, 306,201.03 and 131,261.30 is: 181,126.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,901.92 : 306,201.03 = 131,261.30 : x
  2. Step 2: Convert to fraction form
    221,901.92/306,201.03 = 131,261.30/x
  3. Step 3: Cross multiply
    221,901.92x = 306,201.03 × 131,261.30
  4. Step 4: Simplify right side
    221,901.92x = 40,192,345,259.14
  5. Step 5: Solve for x
    x = 40,192,345,259.14/221,901.92
  6. Step 6: Final answer
    x = 181,126.62

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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.