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Finding the Fourth Proportional to 299,576.20, 449,429.10 and 99,862.60

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Solution

The fourth proportional to 299,576.20, 449,429.10 and 99,862.60 is: 149,815.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,576.20 : 449,429.10 = 99,862.60 : x
  2. Step 2: Convert to fraction form
    299,576.20/449,429.10 = 99,862.60/x
  3. Step 3: Cross multiply
    299,576.20x = 449,429.10 × 99,862.60
  4. Step 4: Simplify right side
    299,576.20x = 44,881,158,441.66
  5. Step 5: Solve for x
    x = 44,881,158,441.66/299,576.20
  6. Step 6: Final answer
    x = 149,815.50

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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.