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Finding the Fourth Proportional to 297,980, 447,250.90 and 108,623.38

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Solution

The fourth proportional to 297,980, 447,250.90 and 108,623.38 is: 163,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,980 : 447,250.90 = 108,623.38 : x
  2. Step 2: Convert to fraction form
    297,980/447,250.90 = 108,623.38/x
  3. Step 3: Cross multiply
    297,980x = 447,250.90 × 108,623.38
  4. Step 4: Simplify right side
    297,980x = 48,581,904,466.04
  5. Step 5: Solve for x
    x = 48,581,904,466.04/297,980
  6. Step 6: Final answer
    x = 163,037.47

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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.