Finding the Fourth Proportional to 205,340.76, 307,261.77 and 121,141.26
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Solution
The fourth proportional to 205,340.76, 307,261.77 and 121,141.26 is: 181,269.80
Step by Step Solution
- Step 1: Write the proportion equation
205,340.76 : 307,261.77 = 121,141.26 : x - Step 2: Convert to fraction form
205,340.76/307,261.77 = 121,141.26/x - Step 3: Cross multiply
205,340.76x = 307,261.77 × 121,141.26 - Step 4: Simplify right side
205,340.76x = 37,222,077,967.63 - Step 5: Solve for x
x = 37,222,077,967.63/205,340.76 - Step 6: Final answer
x = 181,269.80
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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.