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Finding the Fourth Proportional to 368,028.17, 507,803.80 and 215,036.78

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Solution

The fourth proportional to 368,028.17, 507,803.80 and 215,036.78 is: 296,706.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,028.17 : 507,803.80 = 215,036.78 : x
  2. Step 2: Convert to fraction form
    368,028.17/507,803.80 = 215,036.78/x
  3. Step 3: Cross multiply
    368,028.17x = 507,803.80 × 215,036.78
  4. Step 4: Simplify right side
    368,028.17x = 109,196,494,023.76
  5. Step 5: Solve for x
    x = 109,196,494,023.76/368,028.17
  6. Step 6: Final answer
    x = 296,706.89

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