Finding the Fourth Proportional to 211,596.30, 291,984.30 and 120,934.26
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Solution
The fourth proportional to 211,596.30, 291,984.30 and 120,934.26 is: 166,878.65
Step by Step Solution
- Step 1: Write the proportion equation
211,596.30 : 291,984.30 = 120,934.26 : x - Step 2: Convert to fraction form
211,596.30/291,984.30 = 120,934.26/x - Step 3: Cross multiply
211,596.30x = 291,984.30 × 120,934.26 - Step 4: Simplify right side
211,596.30x = 35,310,905,252.12 - Step 5: Solve for x
x = 35,310,905,252.12/211,596.30 - Step 6: Final answer
x = 166,878.65
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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.