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Finding the Fourth Proportional to 260,757.40, 390,552.90 and 214,101.40

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Solution

The fourth proportional to 260,757.40, 390,552.90 and 214,101.40 is: 320,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,757.40 : 390,552.90 = 214,101.40 : x
  2. Step 2: Convert to fraction form
    260,757.40/390,552.90 = 214,101.40/x
  3. Step 3: Cross multiply
    260,757.40x = 390,552.90 × 214,101.40
  4. Step 4: Simplify right side
    260,757.40x = 83,617,922,664.06
  5. Step 5: Solve for x
    x = 83,617,922,664.06/260,757.40
  6. Step 6: Final answer
    x = 320,673.25

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