Finding the Fourth Proportional to 122,646.29, 183,969.44 and 38,413.05
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Solution
The fourth proportional to 122,646.29, 183,969.44 and 38,413.05 is: 57,619.58
Step by Step Solution
- Step 1: Write the proportion equation
122,646.29 : 183,969.44 = 38,413.05 : x - Step 2: Convert to fraction form
122,646.29/183,969.44 = 38,413.05/x - Step 3: Cross multiply
122,646.29x = 183,969.44 × 38,413.05 - Step 4: Simplify right side
122,646.29x = 7,066,827,393.22 - Step 5: Solve for x
x = 7,066,827,393.22/122,646.29 - Step 6: Final answer
x = 57,619.58
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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.