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Finding the Fourth Proportional to 279,108.63, 418,550.24 and 108,240.39

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Solution

The fourth proportional to 279,108.63, 418,550.24 and 108,240.39 is: 162,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,108.63 : 418,550.24 = 108,240.39 : x
  2. Step 2: Convert to fraction form
    279,108.63/418,550.24 = 108,240.39/x
  3. Step 3: Cross multiply
    279,108.63x = 418,550.24 × 108,240.39
  4. Step 4: Simplify right side
    279,108.63x = 45,304,040,670.99
  5. Step 5: Solve for x
    x = 45,304,040,670.99/279,108.63
  6. Step 6: Final answer
    x = 162,316.88

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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.