Home / 254,531.54-381,958.23-142,285.43

Finding the Fourth Proportional to 254,531.54, 381,958.23 and 142,285.43

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Solution

The fourth proportional to 254,531.54, 381,958.23 and 142,285.43 is: 213,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,531.54 : 381,958.23 = 142,285.43 : x
  2. Step 2: Convert to fraction form
    254,531.54/381,958.23 = 142,285.43/x
  3. Step 3: Cross multiply
    254,531.54x = 381,958.23 × 142,285.43
  4. Step 4: Simplify right side
    254,531.54x = 54,347,089,087.80
  5. Step 5: Solve for x
    x = 54,347,089,087.80/254,531.54
  6. Step 6: Final answer
    x = 213,518.10

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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.