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Finding the Fourth Proportional to 303,134.17, 454,702.78 and 78,478.85

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Solution

The fourth proportional to 303,134.17, 454,702.78 and 78,478.85 is: 117,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,134.17 : 454,702.78 = 78,478.85 : x
  2. Step 2: Convert to fraction form
    303,134.17/454,702.78 = 78,478.85/x
  3. Step 3: Cross multiply
    303,134.17x = 454,702.78 × 78,478.85
  4. Step 4: Simplify right side
    303,134.17x = 35,684,551,266.20
  5. Step 5: Solve for x
    x = 35,684,551,266.20/303,134.17
  6. Step 6: Final answer
    x = 117,718.67

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