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Finding the Fourth Proportional to 379,018.91, 567,622.00 and 218,608.57

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Solution

The fourth proportional to 379,018.91, 567,622.00 and 218,608.57 is: 327,390.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,018.91 : 567,622.00 = 218,608.57 : x
  2. Step 2: Convert to fraction form
    379,018.91/567,622.00 = 218,608.57/x
  3. Step 3: Cross multiply
    379,018.91x = 567,622.00 × 218,608.57
  4. Step 4: Simplify right side
    379,018.91x = 124,087,033,473.66
  5. Step 5: Solve for x
    x = 124,087,033,473.66/379,018.91
  6. Step 6: Final answer
    x = 327,390.08

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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.