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Finding the Fourth Proportional to 354,912.60, 531,882.90 and 228,163.80

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Solution

The fourth proportional to 354,912.60, 531,882.90 and 228,163.80 is: 341,933.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,912.60 : 531,882.90 = 228,163.80 : x
  2. Step 2: Convert to fraction form
    354,912.60/531,882.90 = 228,163.80/x
  3. Step 3: Cross multiply
    354,912.60x = 531,882.90 × 228,163.80
  4. Step 4: Simplify right side
    354,912.60x = 121,356,423,619.02
  5. Step 5: Solve for x
    x = 121,356,423,619.02/354,912.60
  6. Step 6: Final answer
    x = 341,933.26

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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.