Finding the Fourth Proportional to 197,584.12, 272,668.26 and 112,706.20
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Solution
The fourth proportional to 197,584.12, 272,668.26 and 112,706.20 is: 155,535.80
Step by Step Solution
- Step 1: Write the proportion equation
197,584.12 : 272,668.26 = 112,706.20 : x - Step 2: Convert to fraction form
197,584.12/272,668.26 = 112,706.20/x - Step 3: Cross multiply
197,584.12x = 272,668.26 × 112,706.20 - Step 4: Simplify right side
197,584.12x = 30,731,403,445.21 - Step 5: Solve for x
x = 30,731,403,445.21/197,584.12 - Step 6: Final answer
x = 155,535.80
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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.