Home / 221,257.48-331,635.05-194,551.78

Finding the Fourth Proportional to 221,257.48, 331,635.05 and 194,551.78

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Solution

The fourth proportional to 221,257.48, 331,635.05 and 194,551.78 is: 291,606.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,257.48 : 331,635.05 = 194,551.78 : x
  2. Step 2: Convert to fraction form
    221,257.48/331,635.05 = 194,551.78/x
  3. Step 3: Cross multiply
    221,257.48x = 331,635.05 × 194,551.78
  4. Step 4: Simplify right side
    221,257.48x = 64,520,189,287.89
  5. Step 5: Solve for x
    x = 64,520,189,287.89/221,257.48
  6. Step 6: Final answer
    x = 291,606.82

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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.