Finding the Fourth Proportional to 206,539.14, 285,028.29 and 115,901.67
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Solution
The fourth proportional to 206,539.14, 285,028.29 and 115,901.67 is: 159,946.70
Step by Step Solution
- Step 1: Write the proportion equation
206,539.14 : 285,028.29 = 115,901.67 : x - Step 2: Convert to fraction form
206,539.14/285,028.29 = 115,901.67/x - Step 3: Cross multiply
206,539.14x = 285,028.29 × 115,901.67 - Step 4: Simplify right side
206,539.14x = 33,035,254,808.24 - Step 5: Solve for x
x = 33,035,254,808.24/206,539.14 - Step 6: Final answer
x = 159,946.70
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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.