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Finding the Fourth Proportional to 214,604.40, 321,906.60 and 125,900.40

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Solution

The fourth proportional to 214,604.40, 321,906.60 and 125,900.40 is: 188,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,604.40 : 321,906.60 = 125,900.40 : x
  2. Step 2: Convert to fraction form
    214,604.40/321,906.60 = 125,900.40/x
  3. Step 3: Cross multiply
    214,604.40x = 321,906.60 × 125,900.40
  4. Step 4: Simplify right side
    214,604.40x = 40,528,169,702.64
  5. Step 5: Solve for x
    x = 40,528,169,702.64/214,604.40
  6. Step 6: Final answer
    x = 188,850.60

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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.