Finding the Fourth Proportional to 290,424.85, 399,364.99 and 252,117.44
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Solution
The fourth proportional to 290,424.85, 399,364.99 and 252,117.44 is: 346,688.23
Step by Step Solution
- Step 1: Write the proportion equation
290,424.85 : 399,364.99 = 252,117.44 : x - Step 2: Convert to fraction form
290,424.85/399,364.99 = 252,117.44/x - Step 3: Cross multiply
290,424.85x = 399,364.99 × 252,117.44 - Step 4: Simplify right side
290,424.85x = 100,686,876,277.31 - Step 5: Solve for x
x = 100,686,876,277.31/290,424.85 - Step 6: Final answer
x = 346,688.23
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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.