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Finding the Fourth Proportional to 403,885.97, 557,339.88 and 222,597.34

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Solution

The fourth proportional to 403,885.97, 557,339.88 and 222,597.34 is: 307,171.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,885.97 : 557,339.88 = 222,597.34 : x
  2. Step 2: Convert to fraction form
    403,885.97/557,339.88 = 222,597.34/x
  3. Step 3: Cross multiply
    403,885.97x = 557,339.88 × 222,597.34
  4. Step 4: Simplify right side
    403,885.97x = 124,062,371,977.22
  5. Step 5: Solve for x
    x = 124,062,371,977.22/403,885.97
  6. Step 6: Final answer
    x = 307,171.78

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1.5x scale

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.