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Finding the Fourth Proportional to 451,226.88, 676,840.32 and 214,440.39

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Solution

The fourth proportional to 451,226.88, 676,840.32 and 214,440.39 is: 321,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,226.88 : 676,840.32 = 214,440.39 : x
  2. Step 2: Convert to fraction form
    451,226.88/676,840.32 = 214,440.39/x
  3. Step 3: Cross multiply
    451,226.88x = 676,840.32 × 214,440.39
  4. Step 4: Simplify right side
    451,226.88x = 145,141,902,188.53
  5. Step 5: Solve for x
    x = 145,141,902,188.53/451,226.88
  6. Step 6: Final answer
    x = 321,660.59

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Similar ratio
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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.