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Finding the Fourth Proportional to 373,291.20, 559,936.80 and 215,827.20

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Solution

The fourth proportional to 373,291.20, 559,936.80 and 215,827.20 is: 323,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,291.20 : 559,936.80 = 215,827.20 : x
  2. Step 2: Convert to fraction form
    373,291.20/559,936.80 = 215,827.20/x
  3. Step 3: Cross multiply
    373,291.20x = 559,936.80 × 215,827.20
  4. Step 4: Simplify right side
    373,291.20x = 120,849,591,720.96
  5. Step 5: Solve for x
    x = 120,849,591,720.96/373,291.20
  6. Step 6: Final answer
    x = 323,740.80

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