Finding the Fourth Proportional to 211,016.05, 291,202.22 and 115,528.79
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Solution
The fourth proportional to 211,016.05, 291,202.22 and 115,528.79 is: 159,429.77
Step by Step Solution
- Step 1: Write the proportion equation
211,016.05 : 291,202.22 = 115,528.79 : x - Step 2: Convert to fraction form
211,016.05/291,202.22 = 115,528.79/x - Step 3: Cross multiply
211,016.05x = 291,202.22 × 115,528.79 - Step 4: Simplify right side
211,016.05x = 33,642,240,121.91 - Step 5: Solve for x
x = 33,642,240,121.91/211,016.05 - Step 6: Final answer
x = 159,429.77
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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.