Finding the Fourth Proportional to 201,413.20, 302,119.80 and 122,681.20
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Solution
The fourth proportional to 201,413.20, 302,119.80 and 122,681.20 is: 184,021.80
Step by Step Solution
- Step 1: Write the proportion equation
201,413.20 : 302,119.80 = 122,681.20 : x - Step 2: Convert to fraction form
201,413.20/302,119.80 = 122,681.20/x - Step 3: Cross multiply
201,413.20x = 302,119.80 × 122,681.20 - Step 4: Simplify right side
201,413.20x = 37,064,419,607.76 - Step 5: Solve for x
x = 37,064,419,607.76/201,413.20 - Step 6: Final answer
x = 184,021.80
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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.