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Finding the Fourth Proportional to 391,114.09, 539,692.82 and 219,008.12

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Solution

The fourth proportional to 391,114.09, 539,692.82 and 219,008.12 is: 302,206.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,114.09 : 539,692.82 = 219,008.12 : x
  2. Step 2: Convert to fraction form
    391,114.09/539,692.82 = 219,008.12/x
  3. Step 3: Cross multiply
    391,114.09x = 539,692.82 × 219,008.12
  4. Step 4: Simplify right side
    391,114.09x = 118,197,111,181.17
  5. Step 5: Solve for x
    x = 118,197,111,181.17/391,114.09
  6. Step 6: Final answer
    x = 302,206.22

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