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Finding the Fourth Proportional to 308,097.07, 425,101.09 and 178,958.81

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Solution

The fourth proportional to 308,097.07, 425,101.09 and 178,958.81 is: 246,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,097.07 : 425,101.09 = 178,958.81 : x
  2. Step 2: Convert to fraction form
    308,097.07/425,101.09 = 178,958.81/x
  3. Step 3: Cross multiply
    308,097.07x = 425,101.09 × 178,958.81
  4. Step 4: Simplify right side
    308,097.07x = 76,075,583,238.56
  5. Step 5: Solve for x
    x = 76,075,583,238.56/308,097.07
  6. Step 6: Final answer
    x = 246,920.83

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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.