Finding the Fourth Proportional to 196,712.06, 271,560.68 and 128,833.05
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Solution
The fourth proportional to 196,712.06, 271,560.68 and 128,833.05 is: 177,853.81
Step by Step Solution
- Step 1: Write the proportion equation
196,712.06 : 271,560.68 = 128,833.05 : x - Step 2: Convert to fraction form
196,712.06/271,560.68 = 128,833.05/x - Step 3: Cross multiply
196,712.06x = 271,560.68 × 128,833.05 - Step 4: Simplify right side
196,712.06x = 34,985,989,631.91 - Step 5: Solve for x
x = 34,985,989,631.91/196,712.06 - Step 6: Final answer
x = 177,853.81
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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.