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Finding the Fourth Proportional to 311,928.27, 468,100.05 and 169,809.42

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Solution

The fourth proportional to 311,928.27, 468,100.05 and 169,809.42 is: 254,827.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,928.27 : 468,100.05 = 169,809.42 : x
  2. Step 2: Convert to fraction form
    311,928.27/468,100.05 = 169,809.42/x
  3. Step 3: Cross multiply
    311,928.27x = 468,100.05 × 169,809.42
  4. Step 4: Simplify right side
    311,928.27x = 79,487,797,992.47
  5. Step 5: Solve for x
    x = 79,487,797,992.47/311,928.27
  6. Step 6: Final answer
    x = 254,827.17

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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.