Home / 278,766.20-384,697.82-151,441.90

Finding the Fourth Proportional to 278,766.20, 384,697.82 and 151,441.90

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Solution

The fourth proportional to 278,766.20, 384,697.82 and 151,441.90 is: 208,990.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,766.20 : 384,697.82 = 151,441.90 : x
  2. Step 2: Convert to fraction form
    278,766.20/384,697.82 = 151,441.90/x
  3. Step 3: Cross multiply
    278,766.20x = 384,697.82 × 151,441.90
  4. Step 4: Simplify right side
    278,766.20x = 58,259,368,786.66
  5. Step 5: Solve for x
    x = 58,259,368,786.66/278,766.20
  6. Step 6: Final answer
    x = 208,990.07

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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.