Finding the Fourth Proportional to 230,715.20, 346,072.80 and 125,739.20
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Solution
The fourth proportional to 230,715.20, 346,072.80 and 125,739.20 is: 188,608.80
Step by Step Solution
- Step 1: Write the proportion equation
230,715.20 : 346,072.80 = 125,739.20 : x - Step 2: Convert to fraction form
230,715.20/346,072.80 = 125,739.20/x - Step 3: Cross multiply
230,715.20x = 346,072.80 × 125,739.20 - Step 4: Simplify right side
230,715.20x = 43,514,917,013.76 - Step 5: Solve for x
x = 43,514,917,013.76/230,715.20 - Step 6: Final answer
x = 188,608.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.