Finding the Fourth Proportional to 397,451.78, 548,626.14 and 236,306.44
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Solution
The fourth proportional to 397,451.78, 548,626.14 and 236,306.44 is: 326,187.72
Step by Step Solution
- Step 1: Write the proportion equation
397,451.78 : 548,626.14 = 236,306.44 : x - Step 2: Convert to fraction form
397,451.78/548,626.14 = 236,306.44/x - Step 3: Cross multiply
397,451.78x = 548,626.14 × 236,306.44 - Step 4: Simplify right side
397,451.78x = 129,643,888,852.81 - Step 5: Solve for x
x = 129,643,888,852.81/397,451.78 - Step 6: Final answer
x = 326,187.72
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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.