Home / 278,739.16-384,645.68-151,414.44

Finding the Fourth Proportional to 278,739.16, 384,645.68 and 151,414.44

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Solution

The fourth proportional to 278,739.16, 384,645.68 and 151,414.44 is: 208,944.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,739.16 : 384,645.68 = 151,414.44 : x
  2. Step 2: Convert to fraction form
    278,739.16/384,645.68 = 151,414.44/x
  3. Step 3: Cross multiply
    278,739.16x = 384,645.68 × 151,414.44
  4. Step 4: Simplify right side
    278,739.16x = 58,240,910,235.62
  5. Step 5: Solve for x
    x = 58,240,910,235.62/278,739.16
  6. Step 6: Final answer
    x = 208,944.13

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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.