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Finding the Fourth Proportional to 378,118.50, 521,814.51 and 208,363.56

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Solution

The fourth proportional to 378,118.50, 521,814.51 and 208,363.56 is: 287,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,118.50 : 521,814.51 = 208,363.56 : x
  2. Step 2: Convert to fraction form
    378,118.50/521,814.51 = 208,363.56/x
  3. Step 3: Cross multiply
    378,118.50x = 521,814.51 × 208,363.56
  4. Step 4: Simplify right side
    378,118.50x = 108,727,128,963.26
  5. Step 5: Solve for x
    x = 108,727,128,963.26/378,118.50
  6. Step 6: Final answer
    x = 287,547.76

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