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Finding the Fourth Proportional to 310,912.40, 466,368.60 and 133,389.20

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Solution

The fourth proportional to 310,912.40, 466,368.60 and 133,389.20 is: 200,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,912.40 : 466,368.60 = 133,389.20 : x
  2. Step 2: Convert to fraction form
    310,912.40/466,368.60 = 133,389.20/x
  3. Step 3: Cross multiply
    310,912.40x = 466,368.60 × 133,389.20
  4. Step 4: Simplify right side
    310,912.40x = 62,208,534,459.12
  5. Step 5: Solve for x
    x = 62,208,534,459.12/310,912.40
  6. Step 6: Final answer
    x = 200,083.80

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