Finding the Fourth Proportional to 202,461.20, 303,691.80 and 91,653.20
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Solution
The fourth proportional to 202,461.20, 303,691.80 and 91,653.20 is: 137,479.80
Step by Step Solution
- Step 1: Write the proportion equation
202,461.20 : 303,691.80 = 91,653.20 : x - Step 2: Convert to fraction form
202,461.20/303,691.80 = 91,653.20/x - Step 3: Cross multiply
202,461.20x = 303,691.80 × 91,653.20 - Step 4: Simplify right side
202,461.20x = 27,834,325,283.76 - Step 5: Solve for x
x = 27,834,325,283.76/202,461.20 - Step 6: Final answer
x = 137,479.80
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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.