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Finding the Fourth Proportional to 254,990.37, 382,568.76 and 121,881

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Solution

The fourth proportional to 254,990.37, 382,568.76 and 121,881 is: 182,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,990.37 : 382,568.76 = 121,881 : x
  2. Step 2: Convert to fraction form
    254,990.37/382,568.76 = 121,881/x
  3. Step 3: Cross multiply
    254,990.37x = 382,568.76 × 121,881
  4. Step 4: Simplify right side
    254,990.37x = 46,627,863,037.56
  5. Step 5: Solve for x
    x = 46,627,863,037.56/254,990.37
  6. Step 6: Final answer
    x = 182,861.27

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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.