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Finding the Fourth Proportional to 439,740, 659,166.96 and 173,397.28

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Solution

The fourth proportional to 439,740, 659,166.96 and 173,397.28 is: 259,921.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,740 : 659,166.96 = 173,397.28 : x
  2. Step 2: Convert to fraction form
    439,740/659,166.96 = 173,397.28/x
  3. Step 3: Cross multiply
    439,740x = 659,166.96 × 173,397.28
  4. Step 4: Simplify right side
    439,740x = 114,297,757,929.87
  5. Step 5: Solve for x
    x = 114,297,757,929.87/439,740
  6. Step 6: Final answer
    x = 259,921.22

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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.