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Finding the Fourth Proportional to 297,290.57, 446,003.97 and 128,839.17

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Solution

The fourth proportional to 297,290.57, 446,003.97 and 128,839.17 is: 193,288.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,290.57 : 446,003.97 = 128,839.17 : x
  2. Step 2: Convert to fraction form
    297,290.57/446,003.97 = 128,839.17/x
  3. Step 3: Cross multiply
    297,290.57x = 446,003.97 × 128,839.17
  4. Step 4: Simplify right side
    297,290.57x = 57,462,781,311.50
  5. Step 5: Solve for x
    x = 57,462,781,311.50/297,290.57
  6. Step 6: Final answer
    x = 193,288.27

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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.