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Finding the Fourth Proportional to 279,150.77, 418,716.26 and 79,472.21

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Solution

The fourth proportional to 279,150.77, 418,716.26 and 79,472.21 is: 119,205.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,150.77 : 418,716.26 = 79,472.21 : x
  2. Step 2: Convert to fraction form
    279,150.77/418,716.26 = 79,472.21/x
  3. Step 3: Cross multiply
    279,150.77x = 418,716.26 × 79,472.21
  4. Step 4: Simplify right side
    279,150.77x = 33,276,306,147.77
  5. Step 5: Solve for x
    x = 33,276,306,147.77/279,150.77
  6. Step 6: Final answer
    x = 119,205.50

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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.