Finding the Fourth Proportional to 290,475.05, 400,743.86 and 214,175.48
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Solution
The fourth proportional to 290,475.05, 400,743.86 and 214,175.48 is: 295,479.79
Step by Step Solution
- Step 1: Write the proportion equation
290,475.05 : 400,743.86 = 214,175.48 : x - Step 2: Convert to fraction form
290,475.05/400,743.86 = 214,175.48/x - Step 3: Cross multiply
290,475.05x = 400,743.86 × 214,175.48 - Step 4: Simplify right side
290,475.05x = 85,829,505,497.96 - Step 5: Solve for x
x = 85,829,505,497.96/290,475.05 - Step 6: Final answer
x = 295,479.79
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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.