Home / 278,556.32-384,408.36-151,229.18

Finding the Fourth Proportional to 278,556.32, 384,408.36 and 151,229.18

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Solution

The fourth proportional to 278,556.32, 384,408.36 and 151,229.18 is: 208,696.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,556.32 : 384,408.36 = 151,229.18 : x
  2. Step 2: Convert to fraction form
    278,556.32/384,408.36 = 151,229.18/x
  3. Step 3: Cross multiply
    278,556.32x = 384,408.36 × 151,229.18
  4. Step 4: Simplify right side
    278,556.32x = 58,133,762,028.97
  5. Step 5: Solve for x
    x = 58,133,762,028.97/278,556.32
  6. Step 6: Final answer
    x = 208,696.62

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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.