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Finding the Fourth Proportional to 214,573.89, 321,890.91 and 64,797.20

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Solution

The fourth proportional to 214,573.89, 321,890.91 and 64,797.20 is: 97,204.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,573.89 : 321,890.91 = 64,797.20 : x
  2. Step 2: Convert to fraction form
    214,573.89/321,890.91 = 64,797.20/x
  3. Step 3: Cross multiply
    214,573.89x = 321,890.91 × 64,797.20
  4. Step 4: Simplify right side
    214,573.89x = 20,857,629,673.45
  5. Step 5: Solve for x
    x = 20,857,629,673.45/214,573.89
  6. Step 6: Final answer
    x = 97,204.88

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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.