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Finding the Fourth Proportional to 353,721.18, 488,177.55 and 208,559.82

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Solution

The fourth proportional to 353,721.18, 488,177.55 and 208,559.82 is: 287,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,721.18 : 488,177.55 = 208,559.82 : x
  2. Step 2: Convert to fraction form
    353,721.18/488,177.55 = 208,559.82/x
  3. Step 3: Cross multiply
    353,721.18x = 488,177.55 × 208,559.82
  4. Step 4: Simplify right side
    353,721.18x = 101,814,221,956.04
  5. Step 5: Solve for x
    x = 101,814,221,956.04/353,721.18
  6. Step 6: Final answer
    x = 287,837.51

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