Finding the Fourth Proportional to 201,979.40, 302,969.10 and 134,619.80
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Solution
The fourth proportional to 201,979.40, 302,969.10 and 134,619.80 is: 201,929.70
Step by Step Solution
- Step 1: Write the proportion equation
201,979.40 : 302,969.10 = 134,619.80 : x - Step 2: Convert to fraction form
201,979.40/302,969.10 = 134,619.80/x - Step 3: Cross multiply
201,979.40x = 302,969.10 × 134,619.80 - Step 4: Simplify right side
201,979.40x = 40,785,639,648.18 - Step 5: Solve for x
x = 40,785,639,648.18/201,979.40 - Step 6: Final answer
x = 201,929.70
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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.