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Finding the Fourth Proportional to 422,247.36, 582,703.20 and 228,657.60

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Solution

The fourth proportional to 422,247.36, 582,703.20 and 228,657.60 is: 315,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,247.36 : 582,703.20 = 228,657.60 : x
  2. Step 2: Convert to fraction form
    422,247.36/582,703.20 = 228,657.60/x
  3. Step 3: Cross multiply
    422,247.36x = 582,703.20 × 228,657.60
  4. Step 4: Simplify right side
    422,247.36x = 133,239,515,224.32
  5. Step 5: Solve for x
    x = 133,239,515,224.32/422,247.36
  6. Step 6: Final answer
    x = 315,548.49

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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.