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Finding the Fourth Proportional to 290,550.16, 400,797.44 and 270,000

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Solution

The fourth proportional to 290,550.16, 400,797.44 and 270,000 is: 372,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,550.16 : 400,797.44 = 270,000 : x
  2. Step 2: Convert to fraction form
    290,550.16/400,797.44 = 270,000/x
  3. Step 3: Cross multiply
    290,550.16x = 400,797.44 × 270,000
  4. Step 4: Simplify right side
    290,550.16x = 108,215,308,800
  5. Step 5: Solve for x
    x = 108,215,308,800/290,550.16
  6. Step 6: Final answer
    x = 372,449.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.