Finding the Fourth Proportional to 386,161.62, 532,897.89 and 216,399.06
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Solution
The fourth proportional to 386,161.62, 532,897.89 and 216,399.06 is: 298,627.82
Step by Step Solution
- Step 1: Write the proportion equation
386,161.62 : 532,897.89 = 216,399.06 : x - Step 2: Convert to fraction form
386,161.62/532,897.89 = 216,399.06/x - Step 3: Cross multiply
386,161.62x = 532,897.89 × 216,399.06 - Step 4: Simplify right side
386,161.62x = 115,318,602,471.98 - Step 5: Solve for x
x = 115,318,602,471.98/386,161.62 - Step 6: Final answer
x = 298,627.82
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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.