Home / 214,640.66-321,961-74,399.28

Finding the Fourth Proportional to 214,640.66, 321,961 and 74,399.28

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Solution

The fourth proportional to 214,640.66, 321,961 and 74,399.28 is: 111,598.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,640.66 : 321,961 = 74,399.28 : x
  2. Step 2: Convert to fraction form
    214,640.66/321,961 = 74,399.28/x
  3. Step 3: Cross multiply
    214,640.66x = 321,961 × 74,399.28
  4. Step 4: Simplify right side
    214,640.66x = 23,953,666,588.08
  5. Step 5: Solve for x
    x = 23,953,666,588.08/214,640.66
  6. Step 6: Final answer
    x = 111,598.92

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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.