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Finding the Fourth Proportional to 299,426.40, 449,139.60 and 294,505.65

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Solution

The fourth proportional to 299,426.40, 449,139.60 and 294,505.65 is: 441,758.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,426.40 : 449,139.60 = 294,505.65 : x
  2. Step 2: Convert to fraction form
    299,426.40/449,139.60 = 294,505.65/x
  3. Step 3: Cross multiply
    299,426.40x = 449,139.60 × 294,505.65
  4. Step 4: Simplify right side
    299,426.40x = 132,274,149,838.74
  5. Step 5: Solve for x
    x = 132,274,149,838.74/299,426.40
  6. Step 6: Final answer
    x = 441,758.48

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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.