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Finding the Fourth Proportional to 299,396.94, 448,935.03 and 121,812.54

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Solution

The fourth proportional to 299,396.94, 448,935.03 and 121,812.54 is: 182,653.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,396.94 : 448,935.03 = 121,812.54 : x
  2. Step 2: Convert to fraction form
    299,396.94/448,935.03 = 121,812.54/x
  3. Step 3: Cross multiply
    299,396.94x = 448,935.03 × 121,812.54
  4. Step 4: Simplify right side
    299,396.94x = 54,685,916,299.28
  5. Step 5: Solve for x
    x = 54,685,916,299.28/299,396.94
  6. Step 6: Final answer
    x = 182,653.56

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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.