Finding the Fourth Proportional to 361,476.40, 542,220.08 and 136,940.80
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Solution
The fourth proportional to 361,476.40, 542,220.08 and 136,940.80 is: 205,413.28
Step by Step Solution
- Step 1: Write the proportion equation
361,476.40 : 542,220.08 = 136,940.80 : x - Step 2: Convert to fraction form
361,476.40/542,220.08 = 136,940.80/x - Step 3: Cross multiply
361,476.40x = 542,220.08 × 136,940.80 - Step 4: Simplify right side
361,476.40x = 74,252,051,531.26 - Step 5: Solve for x
x = 74,252,051,531.26/361,476.40 - Step 6: Final answer
x = 205,413.28
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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.