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Finding the Fourth Proportional to 376,255.73, 519,214.76 and 215,128.51

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Solution

The fourth proportional to 376,255.73, 519,214.76 and 215,128.51 is: 296,866.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,255.73 : 519,214.76 = 215,128.51 : x
  2. Step 2: Convert to fraction form
    376,255.73/519,214.76 = 215,128.51/x
  3. Step 3: Cross multiply
    376,255.73x = 519,214.76 × 215,128.51
  4. Step 4: Simplify right side
    376,255.73x = 111,697,896,121.86
  5. Step 5: Solve for x
    x = 111,697,896,121.86/376,255.73
  6. Step 6: Final answer
    x = 296,866.96

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