Finding the Fourth Proportional to 291,258.15, 401,729.21 and 194,413.18
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Solution
The fourth proportional to 291,258.15, 401,729.21 and 194,413.18 is: 268,151.99
Step by Step Solution
- Step 1: Write the proportion equation
291,258.15 : 401,729.21 = 194,413.18 : x - Step 2: Convert to fraction form
291,258.15/401,729.21 = 194,413.18/x - Step 3: Cross multiply
291,258.15x = 401,729.21 × 194,413.18 - Step 4: Simplify right side
291,258.15x = 78,101,453,214.99 - Step 5: Solve for x
x = 78,101,453,214.99/291,258.15 - Step 6: Final answer
x = 268,151.99
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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.