Finding the Fourth Proportional to 220,953.64, 331,473.78 and 87,809.08
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Solution
The fourth proportional to 220,953.64, 331,473.78 and 87,809.08 is: 131,730.84
Step by Step Solution
- Step 1: Write the proportion equation
220,953.64 : 331,473.78 = 87,809.08 : x - Step 2: Convert to fraction form
220,953.64/331,473.78 = 87,809.08/x - Step 3: Cross multiply
220,953.64x = 331,473.78 × 87,809.08 - Step 4: Simplify right side
220,953.64x = 29,106,407,665.92 - Step 5: Solve for x
x = 29,106,407,665.92/220,953.64 - Step 6: Final answer
x = 131,730.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.