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Finding the Fourth Proportional to 299,526.49, 449,164.95 and 121,912.93

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Solution

The fourth proportional to 299,526.49, 449,164.95 and 121,912.93 is: 182,818.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,526.49 : 449,164.95 = 121,912.93 : x
  2. Step 2: Convert to fraction form
    299,526.49/449,164.95 = 121,912.93/x
  3. Step 3: Cross multiply
    299,526.49x = 449,164.95 × 121,912.93
  4. Step 4: Simplify right side
    299,526.49x = 54,759,015,107.80
  5. Step 5: Solve for x
    x = 54,759,015,107.80/299,526.49
  6. Step 6: Final answer
    x = 182,818.61

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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.