Finding the Fourth Proportional to 330,246.19, 455,879.25 and 222,961.54
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Solution
The fourth proportional to 330,246.19, 455,879.25 and 222,961.54 is: 307,781.11
Step by Step Solution
- Step 1: Write the proportion equation
330,246.19 : 455,879.25 = 222,961.54 : x - Step 2: Convert to fraction form
330,246.19/455,879.25 = 222,961.54/x - Step 3: Cross multiply
330,246.19x = 455,879.25 × 222,961.54 - Step 4: Simplify right side
330,246.19x = 101,643,539,634.05 - Step 5: Solve for x
x = 101,643,539,634.05/330,246.19 - Step 6: Final answer
x = 307,781.11
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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.