Finding the Fourth Proportional to 206,669.10, 310,090.05 and 66,470.70
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Solution
The fourth proportional to 206,669.10, 310,090.05 and 66,470.70 is: 99,733.84
Step by Step Solution
- Step 1: Write the proportion equation
206,669.10 : 310,090.05 = 66,470.70 : x - Step 2: Convert to fraction form
206,669.10/310,090.05 = 66,470.70/x - Step 3: Cross multiply
206,669.10x = 310,090.05 × 66,470.70 - Step 4: Simplify right side
206,669.10x = 20,611,902,686.54 - Step 5: Solve for x
x = 20,611,902,686.54/206,669.10 - Step 6: Final answer
x = 99,733.84
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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.