Finding the Fourth Proportional to 234,409.28, 323,486.36 and 126,979.31
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Solution
The fourth proportional to 234,409.28, 323,486.36 and 126,979.31 is: 175,232.28
Step by Step Solution
- Step 1: Write the proportion equation
234,409.28 : 323,486.36 = 126,979.31 : x - Step 2: Convert to fraction form
234,409.28/323,486.36 = 126,979.31/x - Step 3: Cross multiply
234,409.28x = 323,486.36 × 126,979.31 - Step 4: Simplify right side
234,409.28x = 41,076,072,534.88 - Step 5: Solve for x
x = 41,076,072,534.88/234,409.28 - Step 6: Final answer
x = 175,232.28
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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.