Finding the Fourth Proportional to 400,039.19, 551,793.96 and 256,571.99
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Solution
The fourth proportional to 400,039.19, 551,793.96 and 256,571.99 is: 353,902.51
Step by Step Solution
- Step 1: Write the proportion equation
400,039.19 : 551,793.96 = 256,571.99 : x - Step 2: Convert to fraction form
400,039.19/551,793.96 = 256,571.99/x - Step 3: Cross multiply
400,039.19x = 551,793.96 × 256,571.99 - Step 4: Simplify right side
400,039.19x = 141,574,874,387.18 - Step 5: Solve for x
x = 141,574,874,387.18/400,039.19 - Step 6: Final answer
x = 353,902.51
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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.