Finding the Fourth Proportional to 211,982.36, 292,551.93 and 121,366.76
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Solution
The fourth proportional to 211,982.36, 292,551.93 and 121,366.76 is: 167,495.44
Step by Step Solution
- Step 1: Write the proportion equation
211,982.36 : 292,551.93 = 121,366.76 : x - Step 2: Convert to fraction form
211,982.36/292,551.93 = 121,366.76/x - Step 3: Cross multiply
211,982.36x = 292,551.93 × 121,366.76 - Step 4: Simplify right side
211,982.36x = 35,506,078,413.09 - Step 5: Solve for x
x = 35,506,078,413.09/211,982.36 - Step 6: Final answer
x = 167,495.44
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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.