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Finding the Fourth Proportional to 299,628.80, 449,734.40 and 233,785.60

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Solution

The fourth proportional to 299,628.80, 449,734.40 and 233,785.60 is: 350,905.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,628.80 : 449,734.40 = 233,785.60 : x
  2. Step 2: Convert to fraction form
    299,628.80/449,734.40 = 233,785.60/x
  3. Step 3: Cross multiply
    299,628.80x = 449,734.40 × 233,785.60
  4. Step 4: Simplify right side
    299,628.80x = 105,141,426,544.64
  5. Step 5: Solve for x
    x = 105,141,426,544.64/299,628.80
  6. Step 6: Final answer
    x = 350,905.61

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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.