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Finding the Fourth Proportional to 386,701.72, 533,647.14 and 214,645.72

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Solution

The fourth proportional to 386,701.72, 533,647.14 and 214,645.72 is: 296,210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,701.72 : 533,647.14 = 214,645.72 : x
  2. Step 2: Convert to fraction form
    386,701.72/533,647.14 = 214,645.72/x
  3. Step 3: Cross multiply
    386,701.72x = 533,647.14 × 214,645.72
  4. Step 4: Simplify right side
    386,701.72x = 114,545,074,591.24
  5. Step 5: Solve for x
    x = 114,545,074,591.24/386,701.72
  6. Step 6: Final answer
    x = 296,210.41

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