Home / 214,634.40-321,951.60-74,407.20

Finding the Fourth Proportional to 214,634.40, 321,951.60 and 74,407.20

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Solution

The fourth proportional to 214,634.40, 321,951.60 and 74,407.20 is: 111,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,634.40 : 321,951.60 = 74,407.20 : x
  2. Step 2: Convert to fraction form
    214,634.40/321,951.60 = 74,407.20/x
  3. Step 3: Cross multiply
    214,634.40x = 321,951.60 × 74,407.20
  4. Step 4: Simplify right side
    214,634.40x = 23,955,517,091.52
  5. Step 5: Solve for x
    x = 23,955,517,091.52/214,634.40
  6. Step 6: Final answer
    x = 111,610.80

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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.