Finding the Fourth Proportional to 206,859.68, 310,283.34 and 57,109.11
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Solution
The fourth proportional to 206,859.68, 310,283.34 and 57,109.11 is: 85,661.96
Step by Step Solution
- Step 1: Write the proportion equation
206,859.68 : 310,283.34 = 57,109.11 : x - Step 2: Convert to fraction form
206,859.68/310,283.34 = 57,109.11/x - Step 3: Cross multiply
206,859.68x = 310,283.34 × 57,109.11 - Step 4: Simplify right side
206,859.68x = 17,720,005,395.23 - Step 5: Solve for x
x = 17,720,005,395.23/206,859.68 - Step 6: Final answer
x = 85,661.96
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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.