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Finding the Fourth Proportional to 311,940.84, 468,118.80 and 169,821.96

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Solution

The fourth proportional to 311,940.84, 468,118.80 and 169,821.96 is: 254,845.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,940.84 : 468,118.80 = 169,821.96 : x
  2. Step 2: Convert to fraction form
    311,940.84/468,118.80 = 169,821.96/x
  3. Step 3: Cross multiply
    311,940.84x = 468,118.80 × 169,821.96
  4. Step 4: Simplify right side
    311,940.84x = 79,496,852,128.85
  5. Step 5: Solve for x
    x = 79,496,852,128.85/311,940.84
  6. Step 6: Final answer
    x = 254,845.93

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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.