Finding the Fourth Proportional to 386,559.18, 533,451.15 and 216,791.82
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Solution
The fourth proportional to 386,559.18, 533,451.15 and 216,791.82 is: 299,172.42
Step by Step Solution
- Step 1: Write the proportion equation
386,559.18 : 533,451.15 = 216,791.82 : x - Step 2: Convert to fraction form
386,559.18/533,451.15 = 216,791.82/x - Step 3: Cross multiply
386,559.18x = 533,451.15 × 216,791.82 - Step 4: Simplify right side
386,559.18x = 115,647,845,689.59 - Step 5: Solve for x
x = 115,647,845,689.59/386,559.18 - Step 6: Final answer
x = 299,172.42
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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.