Finding the Fourth Proportional to 207,452.43, 286,347.82 and 121,431.54
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Solution
The fourth proportional to 207,452.43, 286,347.82 and 121,431.54 is: 167,612.68
Step by Step Solution
- Step 1: Write the proportion equation
207,452.43 : 286,347.82 = 121,431.54 : x - Step 2: Convert to fraction form
207,452.43/286,347.82 = 121,431.54/x - Step 3: Cross multiply
207,452.43x = 286,347.82 × 121,431.54 - Step 4: Simplify right side
207,452.43x = 34,771,656,758.24 - Step 5: Solve for x
x = 34,771,656,758.24/207,452.43 - Step 6: Final answer
x = 167,612.68
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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.