Finding the Fourth Proportional to 211,412.30, 317,110.14 and 69,268.23
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Solution
The fourth proportional to 211,412.30, 317,110.14 and 69,268.23 is: 103,899.62
Step by Step Solution
- Step 1: Write the proportion equation
211,412.30 : 317,110.14 = 69,268.23 : x - Step 2: Convert to fraction form
211,412.30/317,110.14 = 69,268.23/x - Step 3: Cross multiply
211,412.30x = 317,110.14 × 69,268.23 - Step 4: Simplify right side
211,412.30x = 21,965,658,112.85 - Step 5: Solve for x
x = 21,965,658,112.85/211,412.30 - Step 6: Final answer
x = 103,899.62
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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.