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Finding the Fourth Proportional to 214,604.80, 321,905.60 and 64,844.80

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Solution

The fourth proportional to 214,604.80, 321,905.60 and 64,844.80 is: 97,266.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,604.80 : 321,905.60 = 64,844.80 : x
  2. Step 2: Convert to fraction form
    214,604.80/321,905.60 = 64,844.80/x
  3. Step 3: Cross multiply
    214,604.80x = 321,905.60 × 64,844.80
  4. Step 4: Simplify right side
    214,604.80x = 20,873,904,250.88
  5. Step 5: Solve for x
    x = 20,873,904,250.88/214,604.80
  6. Step 6: Final answer
    x = 97,266.72

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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.