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Finding the Fourth Proportional to 276,115.84, 380,852.54 and 179,146.45

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Solution

The fourth proportional to 276,115.84, 380,852.54 and 179,146.45 is: 247,100.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,115.84 : 380,852.54 = 179,146.45 : x
  2. Step 2: Convert to fraction form
    276,115.84/380,852.54 = 179,146.45/x
  3. Step 3: Cross multiply
    276,115.84x = 380,852.54 × 179,146.45
  4. Step 4: Simplify right side
    276,115.84x = 68,228,380,766.62
  5. Step 5: Solve for x
    x = 68,228,380,766.62/276,115.84
  6. Step 6: Final answer
    x = 247,100.57

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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.