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Finding the Fourth Proportional to 446,489.89, 669,740.37 and 130,953.31

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Solution

The fourth proportional to 446,489.89, 669,740.37 and 130,953.31 is: 196,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,489.89 : 669,740.37 = 130,953.31 : x
  2. Step 2: Convert to fraction form
    446,489.89/669,740.37 = 130,953.31/x
  3. Step 3: Cross multiply
    446,489.89x = 669,740.37 × 130,953.31
  4. Step 4: Simplify right side
    446,489.89x = 87,704,718,292.12
  5. Step 5: Solve for x
    x = 87,704,718,292.12/446,489.89
  6. Step 6: Final answer
    x = 196,431.59

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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.