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Finding the Fourth Proportional to 279,317.13, 385,454.39 and 151,990.53

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Solution

The fourth proportional to 279,317.13, 385,454.39 and 151,990.53 is: 209,745.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,317.13 : 385,454.39 = 151,990.53 : x
  2. Step 2: Convert to fraction form
    279,317.13/385,454.39 = 151,990.53/x
  3. Step 3: Cross multiply
    279,317.13x = 385,454.39 × 151,990.53
  4. Step 4: Simplify right side
    279,317.13x = 58,585,417,026.93
  5. Step 5: Solve for x
    x = 58,585,417,026.93/279,317.13
  6. Step 6: Final answer
    x = 209,745.16

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