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Finding the Fourth Proportional to 197,172.48, 295,749.12 and 72,505.60

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Solution

The fourth proportional to 197,172.48, 295,749.12 and 72,505.60 is: 108,754.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,172.48 : 295,749.12 = 72,505.60 : x
  2. Step 2: Convert to fraction form
    197,172.48/295,749.12 = 72,505.60/x
  3. Step 3: Cross multiply
    197,172.48x = 295,749.12 × 72,505.60
  4. Step 4: Simplify right side
    197,172.48x = 21,443,467,395.07
  5. Step 5: Solve for x
    x = 21,443,467,395.07/197,172.48
  6. Step 6: Final answer
    x = 108,754.87

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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.