Finding the Fourth Proportional to 396,668.74, 547,412.36 and 215,388.31
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Solution
The fourth proportional to 396,668.74, 547,412.36 and 215,388.31 is: 297,241.02
Step by Step Solution
- Step 1: Write the proportion equation
396,668.74 : 547,412.36 = 215,388.31 : x - Step 2: Convert to fraction form
396,668.74/547,412.36 = 215,388.31/x - Step 3: Cross multiply
396,668.74x = 547,412.36 × 215,388.31 - Step 4: Simplify right side
396,668.74x = 117,906,219,279.51 - Step 5: Solve for x
x = 117,906,219,279.51/396,668.74 - Step 6: Final answer
x = 297,241.02
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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.