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Finding the Fourth Proportional to 221,560.80, 331,952.40 and 181,903.20

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Solution

The fourth proportional to 221,560.80, 331,952.40 and 181,903.20 is: 272,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,560.80 : 331,952.40 = 181,903.20 : x
  2. Step 2: Convert to fraction form
    221,560.80/331,952.40 = 181,903.20/x
  3. Step 3: Cross multiply
    221,560.80x = 331,952.40 × 181,903.20
  4. Step 4: Simplify right side
    221,560.80x = 60,383,203,807.68
  5. Step 5: Solve for x
    x = 60,383,203,807.68/221,560.80
  6. Step 6: Final answer
    x = 272,535.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.