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Finding the Fourth Proportional to 375,818.56, 518,500.32 and 222,825.28

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Solution

The fourth proportional to 375,818.56, 518,500.32 and 222,825.28 is: 307,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,818.56 : 518,500.32 = 222,825.28 : x
  2. Step 2: Convert to fraction form
    375,818.56/518,500.32 = 222,825.28/x
  3. Step 3: Cross multiply
    375,818.56x = 518,500.32 × 222,825.28
  4. Step 4: Simplify right side
    375,818.56x = 115,534,978,984.09
  5. Step 5: Solve for x
    x = 115,534,978,984.09/375,818.56
  6. Step 6: Final answer
    x = 307,422.23

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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.