Finding the Fourth Proportional to 197,243.36, 272,181.12 and 112,343.84
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Solution
The fourth proportional to 197,243.36, 272,181.12 and 112,343.84 is: 155,026.12
Step by Step Solution
- Step 1: Write the proportion equation
197,243.36 : 272,181.12 = 112,343.84 : x - Step 2: Convert to fraction form
197,243.36/272,181.12 = 112,343.84/x - Step 3: Cross multiply
197,243.36x = 272,181.12 × 112,343.84 - Step 4: Simplify right side
197,243.36x = 30,577,872,196.30 - Step 5: Solve for x
x = 30,577,872,196.30/197,243.36 - Step 6: Final answer
x = 155,026.12
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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.