Finding the Fourth Proportional to 211,789.18, 292,266.97 and 114,990.91
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Solution
The fourth proportional to 211,789.18, 292,266.97 and 114,990.91 is: 158,686.31
Step by Step Solution
- Step 1: Write the proportion equation
211,789.18 : 292,266.97 = 114,990.91 : x - Step 2: Convert to fraction form
211,789.18/292,266.97 = 114,990.91/x - Step 3: Cross multiply
211,789.18x = 292,266.97 × 114,990.91 - Step 4: Simplify right side
211,789.18x = 33,608,042,806.95 - Step 5: Solve for x
x = 33,608,042,806.95/211,789.18 - Step 6: Final answer
x = 158,686.31
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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.