Home / 280,281.20-419,960.10-161,745.80

Finding the Fourth Proportional to 280,281.20, 419,960.10 and 161,745.80

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Solution

The fourth proportional to 280,281.20, 419,960.10 and 161,745.80 is: 242,352.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,281.20 : 419,960.10 = 161,745.80 : x
  2. Step 2: Convert to fraction form
    280,281.20/419,960.10 = 161,745.80/x
  3. Step 3: Cross multiply
    280,281.20x = 419,960.10 × 161,745.80
  4. Step 4: Simplify right side
    280,281.20x = 67,926,782,342.58
  5. Step 5: Solve for x
    x = 67,926,782,342.58/280,281.20
  6. Step 6: Final answer
    x = 242,352.26

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1.5x scale

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.