Finding the Fourth Proportional to 396,388.24, 547,186.44 and 243,451.24
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Solution
The fourth proportional to 396,388.24, 547,186.44 and 243,451.24 is: 336,067.53
Step by Step Solution
- Step 1: Write the proportion equation
396,388.24 : 547,186.44 = 243,451.24 : x - Step 2: Convert to fraction form
396,388.24/547,186.44 = 243,451.24/x - Step 3: Cross multiply
396,388.24x = 547,186.44 × 243,451.24 - Step 4: Simplify right side
396,388.24x = 133,213,217,329.19 - Step 5: Solve for x
x = 133,213,217,329.19/396,388.24 - Step 6: Final answer
x = 336,067.53
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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.