Finding the Fourth Proportional to 186,969.43, 258,141.21 and 115,454.53
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Solution
The fourth proportional to 186,969.43, 258,141.21 and 115,454.53 is: 159,403.45
Step by Step Solution
- Step 1: Write the proportion equation
186,969.43 : 258,141.21 = 115,454.53 : x - Step 2: Convert to fraction form
186,969.43/258,141.21 = 115,454.53/x - Step 3: Cross multiply
186,969.43x = 258,141.21 × 115,454.53 - Step 4: Simplify right side
186,969.43x = 29,803,570,783.48 - Step 5: Solve for x
x = 29,803,570,783.48/186,969.43 - Step 6: Final answer
x = 159,403.45
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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.