Finding the Fourth Proportional to 230,928.66, 318,653.43 and 128,959.79
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Solution
The fourth proportional to 230,928.66, 318,653.43 and 128,959.79 is: 177,948.80
Step by Step Solution
- Step 1: Write the proportion equation
230,928.66 : 318,653.43 = 128,959.79 : x - Step 2: Convert to fraction form
230,928.66/318,653.43 = 128,959.79/x - Step 3: Cross multiply
230,928.66x = 318,653.43 × 128,959.79 - Step 4: Simplify right side
230,928.66x = 41,093,477,822.31 - Step 5: Solve for x
x = 41,093,477,822.31/230,928.66 - Step 6: Final answer
x = 177,948.80
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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.