Home / 276,144.75-381,077.37-155,283.47

Finding the Fourth Proportional to 276,144.75, 381,077.37 and 155,283.47

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Solution

The fourth proportional to 276,144.75, 381,077.37 and 155,283.47 is: 214,289.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,144.75 : 381,077.37 = 155,283.47 : x
  2. Step 2: Convert to fraction form
    276,144.75/381,077.37 = 155,283.47/x
  3. Step 3: Cross multiply
    276,144.75x = 381,077.37 × 155,283.47
  4. Step 4: Simplify right side
    276,144.75x = 59,175,014,446.69
  5. Step 5: Solve for x
    x = 59,175,014,446.69/276,144.75
  6. Step 6: Final answer
    x = 214,289.84

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1.5x scale

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.