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Finding the Fourth Proportional to 299,426.01, 449,209.80 and 97,021.78

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Solution

The fourth proportional to 299,426.01, 449,209.80 and 97,021.78 is: 145,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,426.01 : 449,209.80 = 97,021.78 : x
  2. Step 2: Convert to fraction form
    299,426.01/449,209.80 = 97,021.78/x
  3. Step 3: Cross multiply
    299,426.01x = 449,209.80 × 97,021.78
  4. Step 4: Simplify right side
    299,426.01x = 43,583,134,389.44
  5. Step 5: Solve for x
    x = 43,583,134,389.44/299,426.01
  6. Step 6: Final answer
    x = 145,555.61

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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.