Finding the Fourth Proportional to 393,691.73, 543,278.95 and 232,598.93
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Solution
The fourth proportional to 393,691.73, 543,278.95 and 232,598.93 is: 320,977.28
Step by Step Solution
- Step 1: Write the proportion equation
393,691.73 : 543,278.95 = 232,598.93 : x - Step 2: Convert to fraction form
393,691.73/543,278.95 = 232,598.93/x - Step 3: Cross multiply
393,691.73x = 543,278.95 × 232,598.93 - Step 4: Simplify right side
393,691.73x = 126,366,099,163.63 - Step 5: Solve for x
x = 126,366,099,163.63/393,691.73 - Step 6: Final answer
x = 320,977.28
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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.