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Finding the Fourth Proportional to 278,015.63, 383,662.37 and 150,691.73

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Solution

The fourth proportional to 278,015.63, 383,662.37 and 150,691.73 is: 207,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,015.63 : 383,662.37 = 150,691.73 : x
  2. Step 2: Convert to fraction form
    278,015.63/383,662.37 = 150,691.73/x
  3. Step 3: Cross multiply
    278,015.63x = 383,662.37 × 150,691.73
  4. Step 4: Simplify right side
    278,015.63x = 57,814,744,729.62
  5. Step 5: Solve for x
    x = 57,814,744,729.62/278,015.63
  6. Step 6: Final answer
    x = 207,955.02

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1.5x scale

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.