Finding the Fourth Proportional to 382,621.84, 528,015.60 and 210,550.28
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Solution
The fourth proportional to 382,621.84, 528,015.60 and 210,550.28 is: 290,557.99
Step by Step Solution
- Step 1: Write the proportion equation
382,621.84 : 528,015.60 = 210,550.28 : x - Step 2: Convert to fraction form
382,621.84/528,015.60 = 210,550.28/x - Step 3: Cross multiply
382,621.84x = 528,015.60 × 210,550.28 - Step 4: Simplify right side
382,621.84x = 111,173,832,424.37 - Step 5: Solve for x
x = 111,173,832,424.37/382,621.84 - Step 6: Final answer
x = 290,557.99
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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.