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Finding the Fourth Proportional to 403,932.61, 557,401.65 and 222,634.56

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Solution

The fourth proportional to 403,932.61, 557,401.65 and 222,634.56 is: 307,221.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,932.61 : 557,401.65 = 222,634.56 : x
  2. Step 2: Convert to fraction form
    403,932.61/557,401.65 = 222,634.56/x
  3. Step 3: Cross multiply
    403,932.61x = 557,401.65 × 222,634.56
  4. Step 4: Simplify right side
    403,932.61x = 124,096,868,862.64
  5. Step 5: Solve for x
    x = 124,096,868,862.64/403,932.61
  6. Step 6: Final answer
    x = 307,221.72

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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.