Finding the Fourth Proportional to 401,257.26, 553,732.98 and 217,495.09
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Solution
The fourth proportional to 401,257.26, 553,732.98 and 217,495.09 is: 300,142.11
Step by Step Solution
- Step 1: Write the proportion equation
401,257.26 : 553,732.98 = 217,495.09 : x - Step 2: Convert to fraction form
401,257.26/553,732.98 = 217,495.09/x - Step 3: Cross multiply
401,257.26x = 553,732.98 × 217,495.09 - Step 4: Simplify right side
401,257.26x = 120,434,200,464.93 - Step 5: Solve for x
x = 120,434,200,464.93/401,257.26 - Step 6: Final answer
x = 300,142.11
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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.