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Finding the Fourth Proportional to 401,662.73, 554,330.45 and 220,409.98

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Solution

The fourth proportional to 401,662.73, 554,330.45 and 220,409.98 is: 304,185.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,662.73 : 554,330.45 = 220,409.98 : x
  2. Step 2: Convert to fraction form
    401,662.73/554,330.45 = 220,409.98/x
  3. Step 3: Cross multiply
    401,662.73x = 554,330.45 × 220,409.98
  4. Step 4: Simplify right side
    401,662.73x = 122,179,962,563.09
  5. Step 5: Solve for x
    x = 122,179,962,563.09/401,662.73
  6. Step 6: Final answer
    x = 304,185.46

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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.