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Finding the Fourth Proportional to 214,230.54, 321,390.76 and 64,481.78

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Solution

The fourth proportional to 214,230.54, 321,390.76 and 64,481.78 is: 96,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,230.54 : 321,390.76 = 64,481.78 : x
  2. Step 2: Convert to fraction form
    214,230.54/321,390.76 = 64,481.78/x
  3. Step 3: Cross multiply
    214,230.54x = 321,390.76 × 64,481.78
  4. Step 4: Simplify right side
    214,230.54x = 20,723,848,280.35
  5. Step 5: Solve for x
    x = 20,723,848,280.35/214,230.54
  6. Step 6: Final answer
    x = 96,736.20

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1.5x scale

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.