Home / 278,081.14-383,771.64-157,223.60

Finding the Fourth Proportional to 278,081.14, 383,771.64 and 157,223.60

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Solution

The fourth proportional to 278,081.14, 383,771.64 and 157,223.60 is: 216,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,081.14 : 383,771.64 = 157,223.60 : x
  2. Step 2: Convert to fraction form
    278,081.14/383,771.64 = 157,223.60/x
  3. Step 3: Cross multiply
    278,081.14x = 383,771.64 × 157,223.60
  4. Step 4: Simplify right side
    278,081.14x = 60,337,958,818.70
  5. Step 5: Solve for x
    x = 60,337,958,818.70/278,081.14
  6. Step 6: Final answer
    x = 216,979.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.