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Finding the Fourth Proportional to 375,805.85, 518,633.28 and 222,934.55

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Solution

The fourth proportional to 375,805.85, 518,633.28 and 222,934.55 is: 307,662.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,805.85 : 518,633.28 = 222,934.55 : x
  2. Step 2: Convert to fraction form
    375,805.85/518,633.28 = 222,934.55/x
  3. Step 3: Cross multiply
    375,805.85x = 518,633.28 × 222,934.55
  4. Step 4: Simplify right side
    375,805.85x = 115,621,274,298.66
  5. Step 5: Solve for x
    x = 115,621,274,298.66/375,805.85
  6. Step 6: Final answer
    x = 307,662.26

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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.