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Finding the Fourth Proportional to 403,843.95, 557,308.44 and 222,562.50

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Solution

The fourth proportional to 403,843.95, 557,308.44 and 222,562.50 is: 307,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,843.95 : 557,308.44 = 222,562.50 : x
  2. Step 2: Convert to fraction form
    403,843.95/557,308.44 = 222,562.50/x
  3. Step 3: Cross multiply
    403,843.95x = 557,308.44 × 222,562.50
  4. Step 4: Simplify right side
    403,843.95x = 124,035,959,677.50
  5. Step 5: Solve for x
    x = 124,035,959,677.50/403,843.95
  6. Step 6: Final answer
    x = 307,138.34

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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.