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Finding the Fourth Proportional to 401,796.82, 554,477.99 and 220,511.73

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Solution

The fourth proportional to 401,796.82, 554,477.99 and 220,511.73 is: 304,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,796.82 : 554,477.99 = 220,511.73 : x
  2. Step 2: Convert to fraction form
    401,796.82/554,477.99 = 220,511.73/x
  3. Step 3: Cross multiply
    401,796.82x = 554,477.99 × 220,511.73
  4. Step 4: Simplify right side
    401,796.82x = 122,268,899,719.26
  5. Step 5: Solve for x
    x = 122,268,899,719.26/401,796.82
  6. Step 6: Final answer
    x = 304,305.30

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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.