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Finding the Fourth Proportional to 220,234.32, 303,944.67 and 123,454.62

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Solution

The fourth proportional to 220,234.32, 303,944.67 and 123,454.62 is: 170,379.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,234.32 : 303,944.67 = 123,454.62 : x
  2. Step 2: Convert to fraction form
    220,234.32/303,944.67 = 123,454.62/x
  3. Step 3: Cross multiply
    220,234.32x = 303,944.67 × 123,454.62
  4. Step 4: Simplify right side
    220,234.32x = 37,523,373,735.88
  5. Step 5: Solve for x
    x = 37,523,373,735.88/220,234.32
  6. Step 6: Final answer
    x = 170,379.32

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1.5x scale

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.