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Finding the Fourth Proportional to 276,310.05, 414,448.16 and 162,520.79

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Solution

The fourth proportional to 276,310.05, 414,448.16 and 162,520.79 is: 243,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,310.05 : 414,448.16 = 162,520.79 : x
  2. Step 2: Convert to fraction form
    276,310.05/414,448.16 = 162,520.79/x
  3. Step 3: Cross multiply
    276,310.05x = 414,448.16 × 162,520.79
  4. Step 4: Simplify right side
    276,310.05x = 67,356,439,492.40
  5. Step 5: Solve for x
    x = 67,356,439,492.40/276,310.05
  6. Step 6: Final answer
    x = 243,771.23

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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.