Home / 221,306.12-331,789.02-114,575.66

Finding the Fourth Proportional to 221,306.12, 331,789.02 and 114,575.66

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Solution

The fourth proportional to 221,306.12, 331,789.02 and 114,575.66 is: 171,775.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,306.12 : 331,789.02 = 114,575.66 : x
  2. Step 2: Convert to fraction form
    221,306.12/331,789.02 = 114,575.66/x
  3. Step 3: Cross multiply
    221,306.12x = 331,789.02 × 114,575.66
  4. Step 4: Simplify right side
    221,306.12x = 38,014,945,947.25
  5. Step 5: Solve for x
    x = 38,014,945,947.25/221,306.12
  6. Step 6: Final answer
    x = 171,775.39

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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.