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Finding the Fourth Proportional to 313,485.72, 432,742.68 and 211,649.13

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Solution

The fourth proportional to 313,485.72, 432,742.68 and 211,649.13 is: 292,165.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,485.72 : 432,742.68 = 211,649.13 : x
  2. Step 2: Convert to fraction form
    313,485.72/432,742.68 = 211,649.13/x
  3. Step 3: Cross multiply
    313,485.72x = 432,742.68 × 211,649.13
  4. Step 4: Simplify right side
    313,485.72x = 91,589,611,735.87
  5. Step 5: Solve for x
    x = 91,589,611,735.87/313,485.72
  6. Step 6: Final answer
    x = 292,165.18

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