Home / 278,679.27-384,586.48-157,817.96

Finding the Fourth Proportional to 278,679.27, 384,586.48 and 157,817.96

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Solution

The fourth proportional to 278,679.27, 384,586.48 and 157,817.96 is: 217,793.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,679.27 : 384,586.48 = 157,817.96 : x
  2. Step 2: Convert to fraction form
    278,679.27/384,586.48 = 157,817.96/x
  3. Step 3: Cross multiply
    278,679.27x = 384,586.48 × 157,817.96
  4. Step 4: Simplify right side
    278,679.27x = 60,694,653,717.18
  5. Step 5: Solve for x
    x = 60,694,653,717.18/278,679.27
  6. Step 6: Final answer
    x = 217,793.93

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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.