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Finding the Fourth Proportional to 311,928.15, 467,892.23 and 292,245.15

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Solution

The fourth proportional to 311,928.15, 467,892.23 and 292,245.15 is: 438,367.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,928.15 : 467,892.23 = 292,245.15 : x
  2. Step 2: Convert to fraction form
    311,928.15/467,892.23 = 292,245.15/x
  3. Step 3: Cross multiply
    311,928.15x = 467,892.23 × 292,245.15
  4. Step 4: Simplify right side
    311,928.15x = 136,739,233,478.96
  5. Step 5: Solve for x
    x = 136,739,233,478.96/311,928.15
  6. Step 6: Final answer
    x = 438,367.73

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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.