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Finding the Fourth Proportional to 424,067.70, 636,101.55 and 214,115.70

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Solution

The fourth proportional to 424,067.70, 636,101.55 and 214,115.70 is: 321,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,067.70 : 636,101.55 = 214,115.70 : x
  2. Step 2: Convert to fraction form
    424,067.70/636,101.55 = 214,115.70/x
  3. Step 3: Cross multiply
    424,067.70x = 636,101.55 × 214,115.70
  4. Step 4: Simplify right side
    424,067.70x = 136,199,328,649.34
  5. Step 5: Solve for x
    x = 136,199,328,649.34/424,067.70
  6. Step 6: Final answer
    x = 321,173.55

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