Finding the Fourth Proportional to 230,745.78, 318,343.86 and 135,217.62
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Solution
The fourth proportional to 230,745.78, 318,343.86 and 135,217.62 is: 186,550.32
Step by Step Solution
- Step 1: Write the proportion equation
230,745.78 : 318,343.86 = 135,217.62 : x - Step 2: Convert to fraction form
230,745.78/318,343.86 = 135,217.62/x - Step 3: Cross multiply
230,745.78x = 318,343.86 × 135,217.62 - Step 4: Simplify right side
230,745.78x = 43,045,699,090.81 - Step 5: Solve for x
x = 43,045,699,090.81/230,745.78 - Step 6: Final answer
x = 186,550.32
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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.