Finding the Fourth Proportional to 197,820.21, 272,720.75 and 125,186.97
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Solution
The fourth proportional to 197,820.21, 272,720.75 and 125,186.97 is: 172,586.43
Step by Step Solution
- Step 1: Write the proportion equation
197,820.21 : 272,720.75 = 125,186.97 : x - Step 2: Convert to fraction form
197,820.21/272,720.75 = 125,186.97/x - Step 3: Cross multiply
197,820.21x = 272,720.75 × 125,186.97 - Step 4: Simplify right side
197,820.21x = 34,141,083,404.17 - Step 5: Solve for x
x = 34,141,083,404.17/197,820.21 - Step 6: Final answer
x = 172,586.43
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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.