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Finding the Fourth Proportional to 276,652.20, 414,978.30 and 192,671.40

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Solution

The fourth proportional to 276,652.20, 414,978.30 and 192,671.40 is: 289,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,652.20 : 414,978.30 = 192,671.40 : x
  2. Step 2: Convert to fraction form
    276,652.20/414,978.30 = 192,671.40/x
  3. Step 3: Cross multiply
    276,652.20x = 414,978.30 × 192,671.40
  4. Step 4: Simplify right side
    276,652.20x = 79,954,450,030.62
  5. Step 5: Solve for x
    x = 79,954,450,030.62/276,652.20
  6. Step 6: Final answer
    x = 289,007.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.