Home / 278,584.38-384,446.46-151,260

Finding the Fourth Proportional to 278,584.38, 384,446.46 and 151,260

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Solution

The fourth proportional to 278,584.38, 384,446.46 and 151,260 is: 208,738.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,584.38 : 384,446.46 = 151,260 : x
  2. Step 2: Convert to fraction form
    278,584.38/384,446.46 = 151,260/x
  3. Step 3: Cross multiply
    278,584.38x = 384,446.46 × 151,260
  4. Step 4: Simplify right side
    278,584.38x = 58,151,371,539.60
  5. Step 5: Solve for x
    x = 58,151,371,539.60/278,584.38
  6. Step 6: Final answer
    x = 208,738.81

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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.