Home / 278,836.68-384,896.16-171,550.56

Finding the Fourth Proportional to 278,836.68, 384,896.16 and 171,550.56

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Solution

The fourth proportional to 278,836.68, 384,896.16 and 171,550.56 is: 236,802.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,836.68 : 384,896.16 = 171,550.56 : x
  2. Step 2: Convert to fraction form
    278,836.68/384,896.16 = 171,550.56/x
  3. Step 3: Cross multiply
    278,836.68x = 384,896.16 × 171,550.56
  4. Step 4: Simplify right side
    278,836.68x = 66,029,151,789.85
  5. Step 5: Solve for x
    x = 66,029,151,789.85/278,836.68
  6. Step 6: Final answer
    x = 236,802.24

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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.