Finding the Fourth Proportional to 197,785.17, 272,944.85 and 107,141.14
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Solution
The fourth proportional to 197,785.17, 272,944.85 and 107,141.14 is: 147,855.48
Step by Step Solution
- Step 1: Write the proportion equation
197,785.17 : 272,944.85 = 107,141.14 : x - Step 2: Convert to fraction form
197,785.17/272,944.85 = 107,141.14/x - Step 3: Cross multiply
197,785.17x = 272,944.85 × 107,141.14 - Step 4: Simplify right side
197,785.17x = 29,243,621,168.06 - Step 5: Solve for x
x = 29,243,621,168.06/197,785.17 - Step 6: Final answer
x = 147,855.48
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1.5x scale
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.