Home / 278,015.89-383,662.34-150,691.45

Finding the Fourth Proportional to 278,015.89, 383,662.34 and 150,691.45

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Solution

The fourth proportional to 278,015.89, 383,662.34 and 150,691.45 is: 207,954.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,015.89 : 383,662.34 = 150,691.45 : x
  2. Step 2: Convert to fraction form
    278,015.89/383,662.34 = 150,691.45/x
  3. Step 3: Cross multiply
    278,015.89x = 383,662.34 × 150,691.45
  4. Step 4: Simplify right side
    278,015.89x = 57,814,634,324.99
  5. Step 5: Solve for x
    x = 57,814,634,324.99/278,015.89
  6. Step 6: Final answer
    x = 207,954.42

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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.