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Finding the Fourth Proportional to 451,464.88, 622,806.87 and 270,140.30

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Solution

The fourth proportional to 451,464.88, 622,806.87 and 270,140.30 is: 372,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,464.88 : 622,806.87 = 270,140.30 : x
  2. Step 2: Convert to fraction form
    451,464.88/622,806.87 = 270,140.30/x
  3. Step 3: Cross multiply
    451,464.88x = 622,806.87 × 270,140.30
  4. Step 4: Simplify right side
    451,464.88x = 168,245,234,703.86
  5. Step 5: Solve for x
    x = 168,245,234,703.86/451,464.88
  6. Step 6: Final answer
    x = 372,665.17

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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.