Finding the Fourth Proportional to 206,258.79, 284,644.90 and 115,616.53
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Solution
The fourth proportional to 206,258.79, 284,644.90 and 115,616.53 is: 159,555.17
Step by Step Solution
- Step 1: Write the proportion equation
206,258.79 : 284,644.90 = 115,616.53 : x - Step 2: Convert to fraction form
206,258.79/284,644.90 = 115,616.53/x - Step 3: Cross multiply
206,258.79x = 284,644.90 × 115,616.53 - Step 4: Simplify right side
206,258.79x = 32,909,655,620.20 - Step 5: Solve for x
x = 32,909,655,620.20/206,258.79 - Step 6: Final answer
x = 159,555.17
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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.