Finding the Fourth Proportional to 230,695.94, 318,361.28 and 128,725.70
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Solution
The fourth proportional to 230,695.94, 318,361.28 and 128,725.70 is: 177,641.96
Step by Step Solution
- Step 1: Write the proportion equation
230,695.94 : 318,361.28 = 128,725.70 : x - Step 2: Convert to fraction form
230,695.94/318,361.28 = 128,725.70/x - Step 3: Cross multiply
230,695.94x = 318,361.28 × 128,725.70 - Step 4: Simplify right side
230,695.94x = 40,981,277,579.32 - Step 5: Solve for x
x = 40,981,277,579.32/230,695.94 - Step 6: Final answer
x = 177,641.96
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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.