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Finding the Fourth Proportional to 375,211.08, 517,791.42 and 205,455.96

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Solution

The fourth proportional to 375,211.08, 517,791.42 and 205,455.96 is: 283,529.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,211.08 : 517,791.42 = 205,455.96 : x
  2. Step 2: Convert to fraction form
    375,211.08/517,791.42 = 205,455.96/x
  3. Step 3: Cross multiply
    375,211.08x = 517,791.42 × 205,455.96
  4. Step 4: Simplify right side
    375,211.08x = 106,383,333,275.86
  5. Step 5: Solve for x
    x = 106,383,333,275.86/375,211.08
  6. Step 6: Final answer
    x = 283,529.30

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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.