Finding the Fourth Proportional to 299,343.15, 413,437.21 and 218,033.68
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Solution
The fourth proportional to 299,343.15, 413,437.21 and 218,033.68 is: 301,136.79
Step by Step Solution
- Step 1: Write the proportion equation
299,343.15 : 413,437.21 = 218,033.68 : x - Step 2: Convert to fraction form
299,343.15/413,437.21 = 218,033.68/x - Step 3: Cross multiply
299,343.15x = 413,437.21 × 218,033.68 - Step 4: Simplify right side
299,343.15x = 90,143,236,345.23 - Step 5: Solve for x
x = 90,143,236,345.23/299,343.15 - Step 6: Final answer
x = 301,136.79
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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.