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Finding the Fourth Proportional to 272,099.54, 408,153.46 and 103,629.19

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Solution

The fourth proportional to 272,099.54, 408,153.46 and 103,629.19 is: 155,445.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,099.54 : 408,153.46 = 103,629.19 : x
  2. Step 2: Convert to fraction form
    272,099.54/408,153.46 = 103,629.19/x
  3. Step 3: Cross multiply
    272,099.54x = 408,153.46 × 103,629.19
  4. Step 4: Simplify right side
    272,099.54x = 42,296,612,455.50
  5. Step 5: Solve for x
    x = 42,296,612,455.50/272,099.54
  6. Step 6: Final answer
    x = 155,445.37

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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.