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Finding the Fourth Proportional to 311,857.60, 467,797.20 and 98,627.80

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Solution

The fourth proportional to 311,857.60, 467,797.20 and 98,627.80 is: 147,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,857.60 : 467,797.20 = 98,627.80 : x
  2. Step 2: Convert to fraction form
    311,857.60/467,797.20 = 98,627.80/x
  3. Step 3: Cross multiply
    311,857.60x = 467,797.20 × 98,627.80
  4. Step 4: Simplify right side
    311,857.60x = 46,137,808,682.16
  5. Step 5: Solve for x
    x = 46,137,808,682.16/311,857.60
  6. Step 6: Final answer
    x = 147,945.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.