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Finding the Fourth Proportional to 375,812.08, 518,641.92 and 222,940.78

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Solution

The fourth proportional to 375,812.08, 518,641.92 and 222,940.78 is: 307,670.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,812.08 : 518,641.92 = 222,940.78 : x
  2. Step 2: Convert to fraction form
    375,812.08/518,641.92 = 222,940.78/x
  3. Step 3: Cross multiply
    375,812.08x = 518,641.92 × 222,940.78
  4. Step 4: Simplify right side
    375,812.08x = 115,626,434,185.50
  5. Step 5: Solve for x
    x = 115,626,434,185.50/375,812.08
  6. Step 6: Final answer
    x = 307,670.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.