Finding the Fourth Proportional to 230,684.69, 317,982.34 and 157,961.87
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Solution
The fourth proportional to 230,684.69, 317,982.34 and 157,961.87 is: 217,739.14
Step by Step Solution
- Step 1: Write the proportion equation
230,684.69 : 317,982.34 = 157,961.87 : x - Step 2: Convert to fraction form
230,684.69/317,982.34 = 157,961.87/x - Step 3: Cross multiply
230,684.69x = 317,982.34 × 157,961.87 - Step 4: Simplify right side
230,684.69x = 50,229,085,053.38 - Step 5: Solve for x
x = 50,229,085,053.38/230,684.69 - Step 6: Final answer
x = 217,739.14
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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.