Finding the Fourth Proportional to 203,299.82, 280,555.40 and 112,657.30
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Solution
The fourth proportional to 203,299.82, 280,555.40 and 112,657.30 is: 155,467.99
Step by Step Solution
- Step 1: Write the proportion equation
203,299.82 : 280,555.40 = 112,657.30 : x - Step 2: Convert to fraction form
203,299.82/280,555.40 = 112,657.30/x - Step 3: Cross multiply
203,299.82x = 280,555.40 × 112,657.30 - Step 4: Simplify right side
203,299.82x = 31,606,613,878.05 - Step 5: Solve for x
x = 31,606,613,878.05/203,299.82 - Step 6: Final answer
x = 155,467.99
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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.