Finding the Fourth Proportional to 386,212.96, 532,995.75 and 216,458.02
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Solution
The fourth proportional to 386,212.96, 532,995.75 and 216,458.02 is: 298,724.32
Step by Step Solution
- Step 1: Write the proportion equation
386,212.96 : 532,995.75 = 216,458.02 : x - Step 2: Convert to fraction form
386,212.96/532,995.75 = 216,458.02/x - Step 3: Cross multiply
386,212.96x = 532,995.75 × 216,458.02 - Step 4: Simplify right side
386,212.96x = 115,371,204,713.42 - Step 5: Solve for x
x = 115,371,204,713.42/386,212.96 - Step 6: Final answer
x = 298,724.32
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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.