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Finding the Fourth Proportional to 230,343.80, 345,564.91 and 80,588.98

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Solution

The fourth proportional to 230,343.80, 345,564.91 and 80,588.98 is: 120,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,343.80 : 345,564.91 = 80,588.98 : x
  2. Step 2: Convert to fraction form
    230,343.80/345,564.91 = 80,588.98/x
  3. Step 3: Cross multiply
    230,343.80x = 345,564.91 × 80,588.98
  4. Step 4: Simplify right side
    230,343.80x = 27,848,723,620.69
  5. Step 5: Solve for x
    x = 27,848,723,620.69/230,343.80
  6. Step 6: Final answer
    x = 120,900.69

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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.