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Finding the Fourth Proportional to 403,001.82, 556,142.49 and 221,709.84

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Solution

The fourth proportional to 403,001.82, 556,142.49 and 221,709.84 is: 305,959.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,001.82 : 556,142.49 = 221,709.84 : x
  2. Step 2: Convert to fraction form
    403,001.82/556,142.49 = 221,709.84/x
  3. Step 3: Cross multiply
    403,001.82x = 556,142.49 × 221,709.84
  4. Step 4: Simplify right side
    403,001.82x = 123,302,262,475.10
  5. Step 5: Solve for x
    x = 123,302,262,475.10/403,001.82
  6. Step 6: Final answer
    x = 305,959.57

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