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Finding the Fourth Proportional to 311,915.80, 467,873.70 and 272,549.80

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Solution

The fourth proportional to 311,915.80, 467,873.70 and 272,549.80 is: 408,824.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,915.80 : 467,873.70 = 272,549.80 : x
  2. Step 2: Convert to fraction form
    311,915.80/467,873.70 = 272,549.80/x
  3. Step 3: Cross multiply
    311,915.80x = 467,873.70 × 272,549.80
  4. Step 4: Simplify right side
    311,915.80x = 127,518,883,360.26
  5. Step 5: Solve for x
    x = 127,518,883,360.26/311,915.80
  6. Step 6: Final answer
    x = 408,824.70

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