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Finding the Fourth Proportional to 276,053.82, 380,951.98 and 155,195.64

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Solution

The fourth proportional to 276,053.82, 380,951.98 and 155,195.64 is: 214,168.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,053.82 : 380,951.98 = 155,195.64 : x
  2. Step 2: Convert to fraction form
    276,053.82/380,951.98 = 155,195.64/x
  3. Step 3: Cross multiply
    276,053.82x = 380,951.98 × 155,195.64
  4. Step 4: Simplify right side
    276,053.82x = 59,122,086,345.37
  5. Step 5: Solve for x
    x = 59,122,086,345.37/276,053.82
  6. Step 6: Final answer
    x = 214,168.69

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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.