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Finding the Fourth Proportional to 339,881.86, 469,135.56 and 210,859.66

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Solution

The fourth proportional to 339,881.86, 469,135.56 and 210,859.66 is: 291,047.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,881.86 : 469,135.56 = 210,859.66 : x
  2. Step 2: Convert to fraction form
    339,881.86/469,135.56 = 210,859.66/x
  3. Step 3: Cross multiply
    339,881.86x = 469,135.56 × 210,859.66
  4. Step 4: Simplify right side
    339,881.86x = 98,921,764,675.51
  5. Step 5: Solve for x
    x = 98,921,764,675.51/339,881.86
  6. Step 6: Final answer
    x = 291,047.50

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