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Finding the Fourth Proportional to 275,806.80, 413,710.20 and 262,976.40

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Solution

The fourth proportional to 275,806.80, 413,710.20 and 262,976.40 is: 394,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,806.80 : 413,710.20 = 262,976.40 : x
  2. Step 2: Convert to fraction form
    275,806.80/413,710.20 = 262,976.40/x
  3. Step 3: Cross multiply
    275,806.80x = 413,710.20 × 262,976.40
  4. Step 4: Simplify right side
    275,806.80x = 108,796,019,039.28
  5. Step 5: Solve for x
    x = 108,796,019,039.28/275,806.80
  6. Step 6: Final answer
    x = 394,464.60

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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.