Finding the Fourth Proportional to 186,445.80, 257,207.04 and 126,037.62
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Solution
The fourth proportional to 186,445.80, 257,207.04 and 126,037.62 is: 173,872.32
Step by Step Solution
- Step 1: Write the proportion equation
186,445.80 : 257,207.04 = 126,037.62 : x - Step 2: Convert to fraction form
186,445.80/257,207.04 = 126,037.62/x - Step 3: Cross multiply
186,445.80x = 257,207.04 × 126,037.62 - Step 4: Simplify right side
186,445.80x = 32,417,763,168.84 - Step 5: Solve for x
x = 32,417,763,168.84/186,445.80 - Step 6: Final answer
x = 173,872.32
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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.