Finding the Fourth Proportional to 275,719.05, 413,578.58 and 135,751.05
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Solution
The fourth proportional to 275,719.05, 413,578.58 and 135,751.05 is: 203,626.58
Step by Step Solution
- Step 1: Write the proportion equation
275,719.05 : 413,578.58 = 135,751.05 : x - Step 2: Convert to fraction form
275,719.05/413,578.58 = 135,751.05/x - Step 3: Cross multiply
275,719.05x = 413,578.58 × 135,751.05 - Step 4: Simplify right side
275,719.05x = 56,143,725,813.75 - Step 5: Solve for x
x = 56,143,725,813.75/275,719.05 - Step 6: Final answer
x = 203,626.58
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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.