Finding the Fourth Proportional to 299,211.70, 448,837.80 and 121,721.80
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Solution
The fourth proportional to 299,211.70, 448,837.80 and 121,721.80 is: 182,590.94
Step by Step Solution
- Step 1: Write the proportion equation
299,211.70 : 448,837.80 = 121,721.80 : x - Step 2: Convert to fraction form
299,211.70/448,837.80 = 121,721.80/x - Step 3: Cross multiply
299,211.70x = 448,837.80 × 121,721.80 - Step 4: Simplify right side
299,211.70x = 54,633,344,924.04 - Step 5: Solve for x
x = 54,633,344,924.04/299,211.70 - Step 6: Final answer
x = 182,590.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.