Finding the Fourth Proportional to 399,508.42, 551,297.19 and 218,183.62
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Solution
The fourth proportional to 399,508.42, 551,297.19 and 218,183.62 is: 301,080.05
Step by Step Solution
- Step 1: Write the proportion equation
399,508.42 : 551,297.19 = 218,183.62 : x - Step 2: Convert to fraction form
399,508.42/551,297.19 = 218,183.62/x - Step 3: Cross multiply
399,508.42x = 551,297.19 × 218,183.62 - Step 4: Simplify right side
399,508.42x = 120,284,016,610.03 - Step 5: Solve for x
x = 120,284,016,610.03/399,508.42 - Step 6: Final answer
x = 301,080.05
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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.