Finding the Fourth Proportional to 201,943.92, 278,682.84 and 117,110.28
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Solution
The fourth proportional to 201,943.92, 278,682.84 and 117,110.28 is: 161,612.32
Step by Step Solution
- Step 1: Write the proportion equation
201,943.92 : 278,682.84 = 117,110.28 : x - Step 2: Convert to fraction form
201,943.92/278,682.84 = 117,110.28/x - Step 3: Cross multiply
201,943.92x = 278,682.84 × 117,110.28 - Step 4: Simplify right side
201,943.92x = 32,636,625,423.60 - Step 5: Solve for x
x = 32,636,625,423.60/201,943.92 - Step 6: Final answer
x = 161,612.32
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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.