Home / 214,499.62-321,749.40-74,258.20

Finding the Fourth Proportional to 214,499.62, 321,749.40 and 74,258.20

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Solution

The fourth proportional to 214,499.62, 321,749.40 and 74,258.20 is: 111,387.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,499.62 : 321,749.40 = 74,258.20 : x
  2. Step 2: Convert to fraction form
    214,499.62/321,749.40 = 74,258.20/x
  3. Step 3: Cross multiply
    214,499.62x = 321,749.40 × 74,258.20
  4. Step 4: Simplify right side
    214,499.62x = 23,892,531,295.08
  5. Step 5: Solve for x
    x = 23,892,531,295.08/214,499.62
  6. Step 6: Final answer
    x = 111,387.29

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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.