Finding the Fourth Proportional to 211,454.26, 291,820.17 and 115,960.99
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Solution
The fourth proportional to 211,454.26, 291,820.17 and 115,960.99 is: 160,033.46
Step by Step Solution
- Step 1: Write the proportion equation
211,454.26 : 291,820.17 = 115,960.99 : x - Step 2: Convert to fraction form
211,454.26/291,820.17 = 115,960.99/x - Step 3: Cross multiply
211,454.26x = 291,820.17 × 115,960.99 - Step 4: Simplify right side
211,454.26x = 33,839,755,815.17 - Step 5: Solve for x
x = 33,839,755,815.17/211,454.26 - Step 6: Final answer
x = 160,033.46
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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.