Home / 278,163.78-383,865.66-150,839.16

Finding the Fourth Proportional to 278,163.78, 383,865.66 and 150,839.16

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Solution

The fourth proportional to 278,163.78, 383,865.66 and 150,839.16 is: 208,157.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,163.78 : 383,865.66 = 150,839.16 : x
  2. Step 2: Convert to fraction form
    278,163.78/383,865.66 = 150,839.16/x
  3. Step 3: Cross multiply
    278,163.78x = 383,865.66 × 150,839.16
  4. Step 4: Simplify right side
    278,163.78x = 57,901,973,707.25
  5. Step 5: Solve for x
    x = 57,901,973,707.25/278,163.78
  6. Step 6: Final answer
    x = 208,157.85

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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.