Finding the Fourth Proportional to 211,008.23, 291,194.96 and 130,433.68
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Solution
The fourth proportional to 211,008.23, 291,194.96 and 130,433.68 is: 180,000.71
Step by Step Solution
- Step 1: Write the proportion equation
211,008.23 : 291,194.96 = 130,433.68 : x - Step 2: Convert to fraction form
211,008.23/291,194.96 = 130,433.68/x - Step 3: Cross multiply
211,008.23x = 291,194.96 × 130,433.68 - Step 4: Simplify right side
211,008.23x = 37,981,630,230.25 - Step 5: Solve for x
x = 37,981,630,230.25/211,008.23 - Step 6: Final answer
x = 180,000.71
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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.