Finding the Fourth Proportional to 354,361.98, 489,138.03 and 211,166.94
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Solution
The fourth proportional to 354,361.98, 489,138.03 and 211,166.94 is: 291,480.99
Step by Step Solution
- Step 1: Write the proportion equation
354,361.98 : 489,138.03 = 211,166.94 : x - Step 2: Convert to fraction form
354,361.98/489,138.03 = 211,166.94/x - Step 3: Cross multiply
354,361.98x = 489,138.03 × 211,166.94 - Step 4: Simplify right side
354,361.98x = 103,289,781,032.73 - Step 5: Solve for x
x = 103,289,781,032.73/354,361.98 - Step 6: Final answer
x = 291,480.99
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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.