Finding the Fourth Proportional to 206,921.39, 310,257.34 and 134,927.78
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Solution
The fourth proportional to 206,921.39, 310,257.34 and 134,927.78 is: 202,310.32
Step by Step Solution
- Step 1: Write the proportion equation
206,921.39 : 310,257.34 = 134,927.78 : x - Step 2: Convert to fraction form
206,921.39/310,257.34 = 134,927.78/x - Step 3: Cross multiply
206,921.39x = 310,257.34 × 134,927.78 - Step 4: Simplify right side
206,921.39x = 41,862,332,226.30 - Step 5: Solve for x
x = 41,862,332,226.30/206,921.39 - Step 6: Final answer
x = 202,310.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.