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Finding the Fourth Proportional to 351,089.25, 484,501.89 and 189,944.36

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Solution

The fourth proportional to 351,089.25, 484,501.89 and 189,944.36 is: 262,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,089.25 : 484,501.89 = 189,944.36 : x
  2. Step 2: Convert to fraction form
    351,089.25/484,501.89 = 189,944.36/x
  3. Step 3: Cross multiply
    351,089.25x = 484,501.89 × 189,944.36
  4. Step 4: Simplify right side
    351,089.25x = 92,028,401,414.84
  5. Step 5: Solve for x
    x = 92,028,401,414.84/351,089.25
  6. Step 6: Final answer
    x = 262,122.53

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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.