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Finding the Fourth Proportional to 279,798.48, 419,574.24 and 80,073.39

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Solution

The fourth proportional to 279,798.48, 419,574.24 and 80,073.39 is: 120,074.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,798.48 : 419,574.24 = 80,073.39 : x
  2. Step 2: Convert to fraction form
    279,798.48/419,574.24 = 80,073.39/x
  3. Step 3: Cross multiply
    279,798.48x = 419,574.24 × 80,073.39
  4. Step 4: Simplify right side
    279,798.48x = 33,596,731,753.47
  5. Step 5: Solve for x
    x = 33,596,731,753.47/279,798.48
  6. Step 6: Final answer
    x = 120,074.75

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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.