Finding the Fourth Proportional to 217,081.08, 299,583.18 and 121,582.20
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Solution
The fourth proportional to 217,081.08, 299,583.18 and 121,582.20 is: 167,789.76
Step by Step Solution
- Step 1: Write the proportion equation
217,081.08 : 299,583.18 = 121,582.20 : x - Step 2: Convert to fraction form
217,081.08/299,583.18 = 121,582.20/x - Step 3: Cross multiply
217,081.08x = 299,583.18 × 121,582.20 - Step 4: Simplify right side
217,081.08x = 36,423,982,107.40 - Step 5: Solve for x
x = 36,423,982,107.40/217,081.08 - Step 6: Final answer
x = 167,789.76
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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.