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Finding the Fourth Proportional to 664,269.05, 996,561.67 and 214,989.92

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Solution

The fourth proportional to 664,269.05, 996,561.67 and 214,989.92 is: 322,536.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,269.05 : 996,561.67 = 214,989.92 : x
  2. Step 2: Convert to fraction form
    664,269.05/996,561.67 = 214,989.92/x
  3. Step 3: Cross multiply
    664,269.05x = 996,561.67 × 214,989.92
  4. Step 4: Simplify right side
    664,269.05x = 214,250,713,708.37
  5. Step 5: Solve for x
    x = 214,250,713,708.37/664,269.05
  6. Step 6: Final answer
    x = 322,536.05

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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.