Finding the Fourth Proportional to 211,442.35, 291,508.12 and 167,979.09
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Solution
The fourth proportional to 211,442.35, 291,508.12 and 167,979.09 is: 231,586.85
Step by Step Solution
- Step 1: Write the proportion equation
211,442.35 : 291,508.12 = 167,979.09 : x - Step 2: Convert to fraction form
211,442.35/291,508.12 = 167,979.09/x - Step 3: Cross multiply
211,442.35x = 291,508.12 × 167,979.09 - Step 4: Simplify right side
211,442.35x = 48,967,268,725.21 - Step 5: Solve for x
x = 48,967,268,725.21/211,442.35 - Step 6: Final answer
x = 231,586.85
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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.