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Finding the Fourth Proportional to 316,520.40, 436,803.36 and 173,278.08

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Solution

The fourth proportional to 316,520.40, 436,803.36 and 173,278.08 is: 239,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,520.40 : 436,803.36 = 173,278.08 : x
  2. Step 2: Convert to fraction form
    316,520.40/436,803.36 = 173,278.08/x
  3. Step 3: Cross multiply
    316,520.40x = 436,803.36 × 173,278.08
  4. Step 4: Simplify right side
    316,520.40x = 75,688,447,558.35
  5. Step 5: Solve for x
    x = 75,688,447,558.35/316,520.40
  6. Step 6: Final answer
    x = 239,126.60

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