Finding the Fourth Proportional to 299,921.76, 413,891.01 and 163,955.70
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Solution
The fourth proportional to 299,921.76, 413,891.01 and 163,955.70 is: 226,258.31
Step by Step Solution
- Step 1: Write the proportion equation
299,921.76 : 413,891.01 = 163,955.70 : x - Step 2: Convert to fraction form
299,921.76/413,891.01 = 163,955.70/x - Step 3: Cross multiply
299,921.76x = 413,891.01 × 163,955.70 - Step 4: Simplify right side
299,921.76x = 67,859,790,268.26 - Step 5: Solve for x
x = 67,859,790,268.26/299,921.76 - Step 6: Final answer
x = 226,258.31
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1.5x scale
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.