Finding the Fourth Proportional to 206,683.29, 285,204.35 and 120,649.74
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Solution
The fourth proportional to 206,683.29, 285,204.35 and 120,649.74 is: 166,485.79
Step by Step Solution
- Step 1: Write the proportion equation
206,683.29 : 285,204.35 = 120,649.74 : x - Step 2: Convert to fraction form
206,683.29/285,204.35 = 120,649.74/x - Step 3: Cross multiply
206,683.29x = 285,204.35 × 120,649.74 - Step 4: Simplify right side
206,683.29x = 34,409,830,071.12 - Step 5: Solve for x
x = 34,409,830,071.12/206,683.29 - Step 6: Final answer
x = 166,485.79
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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.