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Finding the Fourth Proportional to 332,826.80, 499,240.20 and 280,144.40

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Solution

The fourth proportional to 332,826.80, 499,240.20 and 280,144.40 is: 420,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,826.80 : 499,240.20 = 280,144.40 : x
  2. Step 2: Convert to fraction form
    332,826.80/499,240.20 = 280,144.40/x
  3. Step 3: Cross multiply
    332,826.80x = 499,240.20 × 280,144.40
  4. Step 4: Simplify right side
    332,826.80x = 139,859,346,284.88
  5. Step 5: Solve for x
    x = 139,859,346,284.88/332,826.80
  6. Step 6: Final answer
    x = 420,216.60

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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.