Finding the Fourth Proportional to 197,565.44, 272,640.30 and 106,921.40
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Solution
The fourth proportional to 197,565.44, 272,640.30 and 106,921.40 is: 147,551.53
Step by Step Solution
- Step 1: Write the proportion equation
197,565.44 : 272,640.30 = 106,921.40 : x - Step 2: Convert to fraction form
197,565.44/272,640.30 = 106,921.40/x - Step 3: Cross multiply
197,565.44x = 272,640.30 × 106,921.40 - Step 4: Simplify right side
197,565.44x = 29,151,082,572.42 - Step 5: Solve for x
x = 29,151,082,572.42/197,565.44 - Step 6: Final answer
x = 147,551.53
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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.