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Finding the Fourth Proportional to 304,074.20, 455,420.10 and 192,099.80

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Solution

The fourth proportional to 304,074.20, 455,420.10 and 192,099.80 is: 287,713.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,074.20 : 455,420.10 = 192,099.80 : x
  2. Step 2: Convert to fraction form
    304,074.20/455,420.10 = 192,099.80/x
  3. Step 3: Cross multiply
    304,074.20x = 455,420.10 × 192,099.80
  4. Step 4: Simplify right side
    304,074.20x = 87,486,110,125.98
  5. Step 5: Solve for x
    x = 87,486,110,125.98/304,074.20
  6. Step 6: Final answer
    x = 287,713.03

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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.