Finding the Fourth Proportional to 251,640.63, 347,266.49 and 138,465.81
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Solution
The fourth proportional to 251,640.63, 347,266.49 and 138,465.81 is: 191,084.15
Step by Step Solution
- Step 1: Write the proportion equation
251,640.63 : 347,266.49 = 138,465.81 : x - Step 2: Convert to fraction form
251,640.63/347,266.49 = 138,465.81/x - Step 3: Cross multiply
251,640.63x = 347,266.49 × 138,465.81 - Step 4: Simplify right side
251,640.63x = 48,084,534,433.54 - Step 5: Solve for x
x = 48,084,534,433.54/251,640.63 - Step 6: Final answer
x = 191,084.15
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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.