Home / 221,090.55-331,635.82-54,878.55

Finding the Fourth Proportional to 221,090.55, 331,635.82 and 54,878.55

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Solution

The fourth proportional to 221,090.55, 331,635.82 and 54,878.55 is: 82,317.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,090.55 : 331,635.82 = 54,878.55 : x
  2. Step 2: Convert to fraction form
    221,090.55/331,635.82 = 54,878.55/x
  3. Step 3: Cross multiply
    221,090.55x = 331,635.82 × 54,878.55
  4. Step 4: Simplify right side
    221,090.55x = 18,199,691,134.29
  5. Step 5: Solve for x
    x = 18,199,691,134.29/221,090.55
  6. Step 6: Final answer
    x = 82,317.82

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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.