Home / 298,200.83-447,148.01-87,811.43

Finding the Fourth Proportional to 298,200.83, 447,148.01 and 87,811.43

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Solution

The fourth proportional to 298,200.83, 447,148.01 and 87,811.43 is: 131,672.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,200.83 : 447,148.01 = 87,811.43 : x
  2. Step 2: Convert to fraction form
    298,200.83/447,148.01 = 87,811.43/x
  3. Step 3: Cross multiply
    298,200.83x = 447,148.01 × 87,811.43
  4. Step 4: Simplify right side
    298,200.83x = 39,264,704,163.54
  5. Step 5: Solve for x
    x = 39,264,704,163.54/298,200.83
  6. Step 6: Final answer
    x = 131,672.02

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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.