Home / 214,976.60-322,610.70-139,913.90

Finding the Fourth Proportional to 214,976.60, 322,610.70 and 139,913.90

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Solution

The fourth proportional to 214,976.60, 322,610.70 and 139,913.90 is: 209,965.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,976.60 : 322,610.70 = 139,913.90 : x
  2. Step 2: Convert to fraction form
    214,976.60/322,610.70 = 139,913.90/x
  3. Step 3: Cross multiply
    214,976.60x = 322,610.70 × 139,913.90
  4. Step 4: Simplify right side
    214,976.60x = 45,137,721,218.73
  5. Step 5: Solve for x
    x = 45,137,721,218.73/214,976.60
  6. Step 6: Final answer
    x = 209,965.74

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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.