Finding the Fourth Proportional to 382,976.54, 528,497.30 and 213,210.68
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Solution
The fourth proportional to 382,976.54, 528,497.30 and 213,210.68 is: 294,224.99
Step by Step Solution
- Step 1: Write the proportion equation
382,976.54 : 528,497.30 = 213,210.68 : x - Step 2: Convert to fraction form
382,976.54/528,497.30 = 213,210.68/x - Step 3: Cross multiply
382,976.54x = 528,497.30 × 213,210.68 - Step 4: Simplify right side
382,976.54x = 112,681,268,711.16 - Step 5: Solve for x
x = 112,681,268,711.16/382,976.54 - Step 6: Final answer
x = 294,224.99
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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.