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Finding the Fourth Proportional to 230,061.45, 345,147.45 and 72,289.77

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Solution

The fourth proportional to 230,061.45, 345,147.45 and 72,289.77 is: 108,452.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,061.45 : 345,147.45 = 72,289.77 : x
  2. Step 2: Convert to fraction form
    230,061.45/345,147.45 = 72,289.77/x
  3. Step 3: Cross multiply
    230,061.45x = 345,147.45 × 72,289.77
  4. Step 4: Simplify right side
    230,061.45x = 24,950,629,776.59
  5. Step 5: Solve for x
    x = 24,950,629,776.59/230,061.45
  6. Step 6: Final answer
    x = 108,452.02

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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.