Finding the Fourth Proportional to 197,427.26, 272,449.33 and 111,386.13
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Solution
The fourth proportional to 197,427.26, 272,449.33 and 111,386.13 is: 153,712.70
Step by Step Solution
- Step 1: Write the proportion equation
197,427.26 : 272,449.33 = 111,386.13 : x - Step 2: Convert to fraction form
197,427.26/272,449.33 = 111,386.13/x - Step 3: Cross multiply
197,427.26x = 272,449.33 × 111,386.13 - Step 4: Simplify right side
197,427.26x = 30,347,076,489.79 - Step 5: Solve for x
x = 30,347,076,489.79/197,427.26 - Step 6: Final answer
x = 153,712.70
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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.