Finding the Fourth Proportional to 211,781.19, 292,267.58 and 126,896.43
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Solution
The fourth proportional to 211,781.19, 292,267.58 and 126,896.43 is: 175,122.79
Step by Step Solution
- Step 1: Write the proportion equation
211,781.19 : 292,267.58 = 126,896.43 : x - Step 2: Convert to fraction form
211,781.19/292,267.58 = 126,896.43/x - Step 3: Cross multiply
211,781.19x = 292,267.58 × 126,896.43 - Step 4: Simplify right side
211,781.19x = 37,087,711,872.26 - Step 5: Solve for x
x = 37,087,711,872.26/211,781.19 - Step 6: Final answer
x = 175,122.79
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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.