Finding the Fourth Proportional to 211,645.58, 317,464.88 and 85,282.74
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Solution
The fourth proportional to 211,645.58, 317,464.88 and 85,282.74 is: 127,922.70
Step by Step Solution
- Step 1: Write the proportion equation
211,645.58 : 317,464.88 = 85,282.74 : x - Step 2: Convert to fraction form
211,645.58/317,464.88 = 85,282.74/x - Step 3: Cross multiply
211,645.58x = 317,464.88 × 85,282.74 - Step 4: Simplify right side
211,645.58x = 27,074,274,393.76 - Step 5: Solve for x
x = 27,074,274,393.76/211,645.58 - Step 6: Final answer
x = 127,922.70
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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.