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Finding the Fourth Proportional to 349,122, 481,788.36 and 190,146

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Solution

The fourth proportional to 349,122, 481,788.36 and 190,146 is: 262,401.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,122 : 481,788.36 = 190,146 : x
  2. Step 2: Convert to fraction form
    349,122/481,788.36 = 190,146/x
  3. Step 3: Cross multiply
    349,122x = 481,788.36 × 190,146
  4. Step 4: Simplify right side
    349,122x = 91,610,129,500.56
  5. Step 5: Solve for x
    x = 91,610,129,500.56/349,122
  6. Step 6: Final answer
    x = 262,401.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.