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Finding the Fourth Proportional to 403,808.78, 557,248.46 and 222,537.46

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Solution

The fourth proportional to 403,808.78, 557,248.46 and 222,537.46 is: 307,097.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,808.78 : 557,248.46 = 222,537.46 : x
  2. Step 2: Convert to fraction form
    403,808.78/557,248.46 = 222,537.46/x
  3. Step 3: Cross multiply
    403,808.78x = 557,248.46 × 222,537.46
  4. Step 4: Simplify right side
    403,808.78x = 124,008,655,764.62
  5. Step 5: Solve for x
    x = 124,008,655,764.62/403,808.78
  6. Step 6: Final answer
    x = 307,097.48

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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.