Finding the Fourth Proportional to 308,641.99, 425,843.81 and 211,875.44
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Solution
The fourth proportional to 308,641.99, 425,843.81 and 211,875.44 is: 292,331.72
Step by Step Solution
- Step 1: Write the proportion equation
308,641.99 : 425,843.81 = 211,875.44 : x - Step 2: Convert to fraction form
308,641.99/425,843.81 = 211,875.44/x - Step 3: Cross multiply
308,641.99x = 425,843.81 × 211,875.44 - Step 4: Simplify right side
308,641.99x = 90,225,842,491.04 - Step 5: Solve for x
x = 90,225,842,491.04/308,641.99 - Step 6: Final answer
x = 292,331.72
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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.