Finding the Fourth Proportional to 215,570.05, 297,478.65 and 120,074.70
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Solution
The fourth proportional to 215,570.05, 297,478.65 and 120,074.70 is: 165,698.62
Step by Step Solution
- Step 1: Write the proportion equation
215,570.05 : 297,478.65 = 120,074.70 : x - Step 2: Convert to fraction form
215,570.05/297,478.65 = 120,074.70/x - Step 3: Cross multiply
215,570.05x = 297,478.65 × 120,074.70 - Step 4: Simplify right side
215,570.05x = 35,719,659,655.16 - Step 5: Solve for x
x = 35,719,659,655.16/215,570.05 - Step 6: Final answer
x = 165,698.62
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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.