Finding the Fourth Proportional to 213,455.19, 320,217.35 and 65,676.63
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Solution
The fourth proportional to 213,455.19, 320,217.35 and 65,676.63 is: 98,525.58
Step by Step Solution
- Step 1: Write the proportion equation
213,455.19 : 320,217.35 = 65,676.63 : x - Step 2: Convert to fraction form
213,455.19/320,217.35 = 65,676.63/x - Step 3: Cross multiply
213,455.19x = 320,217.35 × 65,676.63 - Step 4: Simplify right side
213,455.19x = 21,030,796,415.53 - Step 5: Solve for x
x = 21,030,796,415.53/213,455.19 - Step 6: Final answer
x = 98,525.58
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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.