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Finding the Fourth Proportional to 218,243.86, 301,173.56 and 122,750.52

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Solution

The fourth proportional to 218,243.86, 301,173.56 and 122,750.52 is: 169,394.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,243.86 : 301,173.56 = 122,750.52 : x
  2. Step 2: Convert to fraction form
    218,243.86/301,173.56 = 122,750.52/x
  3. Step 3: Cross multiply
    218,243.86x = 301,173.56 × 122,750.52
  4. Step 4: Simplify right side
    218,243.86x = 36,969,211,100.25
  5. Step 5: Solve for x
    x = 36,969,211,100.25/218,243.86
  6. Step 6: Final answer
    x = 169,394.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.