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Finding the Fourth Proportional to 276,243.40, 412,064.69 and 271,671.76

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Solution

The fourth proportional to 276,243.40, 412,064.69 and 271,671.76 is: 405,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,243.40 : 412,064.69 = 271,671.76 : x
  2. Step 2: Convert to fraction form
    276,243.40/412,064.69 = 271,671.76/x
  3. Step 3: Cross multiply
    276,243.40x = 412,064.69 × 271,671.76
  4. Step 4: Simplify right side
    276,243.40x = 111,946,339,566.15
  5. Step 5: Solve for x
    x = 111,946,339,566.15/276,243.40
  6. Step 6: Final answer
    x = 405,245.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.