Finding the Fourth Proportional to 225,455.50, 311,128.68 and 124,853.50
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Solution
The fourth proportional to 225,455.50, 311,128.68 and 124,853.50 is: 172,297.88
Step by Step Solution
- Step 1: Write the proportion equation
225,455.50 : 311,128.68 = 124,853.50 : x - Step 2: Convert to fraction form
225,455.50/311,128.68 = 124,853.50/x - Step 3: Cross multiply
225,455.50x = 311,128.68 × 124,853.50 - Step 4: Simplify right side
225,455.50x = 38,845,504,648.38 - Step 5: Solve for x
x = 38,845,504,648.38/225,455.50 - Step 6: Final answer
x = 172,297.88
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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.