Finding the Fourth Proportional to 197,276.48, 272,201.28 and 112,371.20
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Solution
The fourth proportional to 197,276.48, 272,201.28 and 112,371.20 is: 155,049.32
Step by Step Solution
- Step 1: Write the proportion equation
197,276.48 : 272,201.28 = 112,371.20 : x - Step 2: Convert to fraction form
197,276.48/272,201.28 = 112,371.20/x - Step 3: Cross multiply
197,276.48x = 272,201.28 × 112,371.20 - Step 4: Simplify right side
197,276.48x = 30,587,584,475.14 - Step 5: Solve for x
x = 30,587,584,475.14/197,276.48 - Step 6: Final answer
x = 155,049.32
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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.