Home / 278,836.68-384,793.86-151,512.27

Finding the Fourth Proportional to 278,836.68, 384,793.86 and 151,512.27

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Solution

The fourth proportional to 278,836.68, 384,793.86 and 151,512.27 is: 209,086.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,836.68 : 384,793.86 = 151,512.27 : x
  2. Step 2: Convert to fraction form
    278,836.68/384,793.86 = 151,512.27/x
  3. Step 3: Cross multiply
    278,836.68x = 384,793.86 × 151,512.27
  4. Step 4: Simplify right side
    278,836.68x = 58,300,991,210.66
  5. Step 5: Solve for x
    x = 58,300,991,210.66/278,836.68
  6. Step 6: Final answer
    x = 209,086.52

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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.