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Finding the Fourth Proportional to 378,247.82, 567,372.13 and 218,566.85

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Solution

The fourth proportional to 378,247.82, 567,372.13 and 218,566.85 is: 327,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,247.82 : 567,372.13 = 218,566.85 : x
  2. Step 2: Convert to fraction form
    378,247.82/567,372.13 = 218,566.85/x
  3. Step 3: Cross multiply
    378,247.82x = 567,372.13 × 218,566.85
  4. Step 4: Simplify right side
    378,247.82x = 124,008,735,848.61
  5. Step 5: Solve for x
    x = 124,008,735,848.61/378,247.82
  6. Step 6: Final answer
    x = 327,850.50

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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.