Home / 276,556.69-381,619.02-155,695.78

Finding the Fourth Proportional to 276,556.69, 381,619.02 and 155,695.78

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Solution

The fourth proportional to 276,556.69, 381,619.02 and 155,695.78 is: 214,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,556.69 : 381,619.02 = 155,695.78 : x
  2. Step 2: Convert to fraction form
    276,556.69/381,619.02 = 155,695.78/x
  3. Step 3: Cross multiply
    276,556.69x = 381,619.02 × 155,695.78
  4. Step 4: Simplify right side
    276,556.69x = 59,416,470,981.74
  5. Step 5: Solve for x
    x = 59,416,470,981.74/276,556.69
  6. Step 6: Final answer
    x = 214,843.73

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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.