Finding the Fourth Proportional to 211,597.81, 317,477.75 and 127,418.13
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Solution
The fourth proportional to 211,597.81, 317,477.75 and 127,418.13 is: 191,175.99
Step by Step Solution
- Step 1: Write the proportion equation
211,597.81 : 317,477.75 = 127,418.13 : x - Step 2: Convert to fraction form
211,597.81/317,477.75 = 127,418.13/x - Step 3: Cross multiply
211,597.81x = 317,477.75 × 127,418.13 - Step 4: Simplify right side
211,597.81x = 40,452,420,584.52 - Step 5: Solve for x
x = 40,452,420,584.52/211,597.81 - Step 6: Final answer
x = 191,175.99
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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.