Finding the Fourth Proportional to 177,901.68, 245,705.88 and 121,214.64
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Solution
The fourth proportional to 177,901.68, 245,705.88 and 121,214.64 is: 167,413.54
Step by Step Solution
- Step 1: Write the proportion equation
177,901.68 : 245,705.88 = 121,214.64 : x - Step 2: Convert to fraction form
177,901.68/245,705.88 = 121,214.64/x - Step 3: Cross multiply
177,901.68x = 245,705.88 × 121,214.64 - Step 4: Simplify right side
177,901.68x = 29,783,149,790.08 - Step 5: Solve for x
x = 29,783,149,790.08/177,901.68 - Step 6: Final answer
x = 167,413.54
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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.