Home / 278,096.88-383,771.38-157,261.89

Finding the Fourth Proportional to 278,096.88, 383,771.38 and 157,261.89

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Solution

The fourth proportional to 278,096.88, 383,771.38 and 157,261.89 is: 217,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,096.88 : 383,771.38 = 157,261.89 : x
  2. Step 2: Convert to fraction form
    278,096.88/383,771.38 = 157,261.89/x
  3. Step 3: Cross multiply
    278,096.88x = 383,771.38 × 157,261.89
  4. Step 4: Simplify right side
    278,096.88x = 60,352,612,546.71
  5. Step 5: Solve for x
    x = 60,352,612,546.71/278,096.88
  6. Step 6: Final answer
    x = 217,020.10

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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.