Finding the Fourth Proportional to 174,707.80, 261,413.70 and 128,051.80
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Solution
The fourth proportional to 174,707.80, 261,413.70 and 128,051.80 is: 191,602.75
Step by Step Solution
- Step 1: Write the proportion equation
174,707.80 : 261,413.70 = 128,051.80 : x - Step 2: Convert to fraction form
174,707.80/261,413.70 = 128,051.80/x - Step 3: Cross multiply
174,707.80x = 261,413.70 × 128,051.80 - Step 4: Simplify right side
174,707.80x = 33,474,494,829.66 - Step 5: Solve for x
x = 33,474,494,829.66/174,707.80 - Step 6: Final answer
x = 191,602.75
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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.