Finding the Fourth Proportional to 397,412.10, 548,235.81 and 236,152.98
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Solution
The fourth proportional to 397,412.10, 548,235.81 and 236,152.98 is: 325,776.49
Step by Step Solution
- Step 1: Write the proportion equation
397,412.10 : 548,235.81 = 236,152.98 : x - Step 2: Convert to fraction form
397,412.10/548,235.81 = 236,152.98/x - Step 3: Cross multiply
397,412.10x = 548,235.81 × 236,152.98 - Step 4: Simplify right side
397,412.10x = 129,467,520,274.21 - Step 5: Solve for x
x = 129,467,520,274.21/397,412.10 - Step 6: Final answer
x = 325,776.49
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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.