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Finding the Fourth Proportional to 225,637.40, 338,585.70 and 85,496.60

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Solution

The fourth proportional to 225,637.40, 338,585.70 and 85,496.60 is: 128,294.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,637.40 : 338,585.70 = 85,496.60 : x
  2. Step 2: Convert to fraction form
    225,637.40/338,585.70 = 85,496.60/x
  3. Step 3: Cross multiply
    225,637.40x = 338,585.70 × 85,496.60
  4. Step 4: Simplify right side
    225,637.40x = 28,947,926,158.62
  5. Step 5: Solve for x
    x = 28,947,926,158.62/225,637.40
  6. Step 6: Final answer
    x = 128,294.01

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