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Finding the Fourth Proportional to 321,950.70, 444,269.61 and 178,702.20

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Solution

The fourth proportional to 321,950.70, 444,269.61 and 178,702.20 is: 246,596.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,950.70 : 444,269.61 = 178,702.20 : x
  2. Step 2: Convert to fraction form
    321,950.70/444,269.61 = 178,702.20/x
  3. Step 3: Cross multiply
    321,950.70x = 444,269.61 × 178,702.20
  4. Step 4: Simplify right side
    321,950.70x = 79,391,956,700.14
  5. Step 5: Solve for x
    x = 79,391,956,700.14/321,950.70
  6. Step 6: Final answer
    x = 246,596.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.