Finding the Fourth Proportional to 206,957.70, 310,436.55 and 180,713.70
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Solution
The fourth proportional to 206,957.70, 310,436.55 and 180,713.70 is: 271,070.55
Step by Step Solution
- Step 1: Write the proportion equation
206,957.70 : 310,436.55 = 180,713.70 : x - Step 2: Convert to fraction form
206,957.70/310,436.55 = 180,713.70/x - Step 3: Cross multiply
206,957.70x = 310,436.55 × 180,713.70 - Step 4: Simplify right side
206,957.70x = 56,100,137,565.74 - Step 5: Solve for x
x = 56,100,137,565.74/206,957.70 - Step 6: Final answer
x = 271,070.55
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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.