Finding the Fourth Proportional to 211,491.62, 291,862.99 and 115,998.09
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Solution
The fourth proportional to 211,491.62, 291,862.99 and 115,998.09 is: 160,079.86
Step by Step Solution
- Step 1: Write the proportion equation
211,491.62 : 291,862.99 = 115,998.09 : x - Step 2: Convert to fraction form
211,491.62/291,862.99 = 115,998.09/x - Step 3: Cross multiply
211,491.62x = 291,862.99 × 115,998.09 - Step 4: Simplify right side
211,491.62x = 33,855,549,381.69 - Step 5: Solve for x
x = 33,855,549,381.69/211,491.62 - Step 6: Final answer
x = 160,079.86
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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.