Finding the Fourth Proportional to 206,257.79, 284,643.52 and 115,615.53
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Solution
The fourth proportional to 206,257.79, 284,643.52 and 115,615.53 is: 159,553.78
Step by Step Solution
- Step 1: Write the proportion equation
206,257.79 : 284,643.52 = 115,615.53 : x - Step 2: Convert to fraction form
206,257.79/284,643.52 = 115,615.53/x - Step 3: Cross multiply
206,257.79x = 284,643.52 × 115,615.53 - Step 4: Simplify right side
206,257.79x = 32,909,210,336.27 - Step 5: Solve for x
x = 32,909,210,336.27/206,257.79 - Step 6: Final answer
x = 159,553.78
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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.