Finding the Fourth Proportional to 397,597.05, 548,642.96 and 236,420.95
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Solution
The fourth proportional to 397,597.05, 548,642.96 and 236,420.95 is: 326,236.55
Step by Step Solution
- Step 1: Write the proportion equation
397,597.05 : 548,642.96 = 236,420.95 : x - Step 2: Convert to fraction form
397,597.05/548,642.96 = 236,420.95/x - Step 3: Cross multiply
397,597.05x = 548,642.96 × 236,420.95 - Step 4: Simplify right side
397,597.05x = 129,710,689,814.01 - Step 5: Solve for x
x = 129,710,689,814.01/397,597.05 - Step 6: Final answer
x = 326,236.55
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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.