Home / 214,717.76-321,907.24-135,665.36

Finding the Fourth Proportional to 214,717.76, 321,907.24 and 135,665.36

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Solution

The fourth proportional to 214,717.76, 321,907.24 and 135,665.36 is: 203,391.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,717.76 : 321,907.24 = 135,665.36 : x
  2. Step 2: Convert to fraction form
    214,717.76/321,907.24 = 135,665.36/x
  3. Step 3: Cross multiply
    214,717.76x = 321,907.24 × 135,665.36
  4. Step 4: Simplify right side
    214,717.76x = 43,671,661,601.21
  5. Step 5: Solve for x
    x = 43,671,661,601.21/214,717.76
  6. Step 6: Final answer
    x = 203,391.01

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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.