Home / 278,115.12-383,795.42-150,790.41

Finding the Fourth Proportional to 278,115.12, 383,795.42 and 150,790.41

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Solution

The fourth proportional to 278,115.12, 383,795.42 and 150,790.41 is: 208,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,115.12 : 383,795.42 = 150,790.41 : x
  2. Step 2: Convert to fraction form
    278,115.12/383,795.42 = 150,790.41/x
  3. Step 3: Cross multiply
    278,115.12x = 383,795.42 × 150,790.41
  4. Step 4: Simplify right side
    278,115.12x = 57,872,667,983.97
  5. Step 5: Solve for x
    x = 57,872,667,983.97/278,115.12
  6. Step 6: Final answer
    x = 208,088.89

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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.