Finding the Fourth Proportional to 211,181.99, 291,358.11 and 160,141.55
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Solution
The fourth proportional to 211,181.99, 291,358.11 and 160,141.55 is: 220,939.95
Step by Step Solution
- Step 1: Write the proportion equation
211,181.99 : 291,358.11 = 160,141.55 : x - Step 2: Convert to fraction form
211,181.99/291,358.11 = 160,141.55/x - Step 3: Cross multiply
211,181.99x = 291,358.11 × 160,141.55 - Step 4: Simplify right side
211,181.99x = 46,658,537,082.97 - Step 5: Solve for x
x = 46,658,537,082.97/211,181.99 - Step 6: Final answer
x = 220,939.95
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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.