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Finding the Fourth Proportional to 360,201.26, 539,818.92 and 280,335.66

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Solution

The fourth proportional to 360,201.26, 539,818.92 and 280,335.66 is: 420,127.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,201.26 : 539,818.92 = 280,335.66 : x
  2. Step 2: Convert to fraction form
    360,201.26/539,818.92 = 280,335.66/x
  3. Step 3: Cross multiply
    360,201.26x = 539,818.92 × 280,335.66
  4. Step 4: Simplify right side
    360,201.26x = 151,330,493,218.69
  5. Step 5: Solve for x
    x = 151,330,493,218.69/360,201.26
  6. Step 6: Final answer
    x = 420,127.61

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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.