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Finding the Fourth Proportional to 143,230.56, 214,848 and 49,738.56

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Solution

The fourth proportional to 143,230.56, 214,848 and 49,738.56 is: 74,608.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,230.56 : 214,848 = 49,738.56 : x
  2. Step 2: Convert to fraction form
    143,230.56/214,848 = 49,738.56/x
  3. Step 3: Cross multiply
    143,230.56x = 214,848 × 49,738.56
  4. Step 4: Simplify right side
    143,230.56x = 10,686,230,138.88
  5. Step 5: Solve for x
    x = 10,686,230,138.88/143,230.56
  6. Step 6: Final answer
    x = 74,608.59

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1.5x scale

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.