Finding the Fourth Proportional to 213,454.19, 320,215.85 and 65,675.63
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Solution
The fourth proportional to 213,454.19, 320,215.85 and 65,675.63 is: 98,524.07
Step by Step Solution
- Step 1: Write the proportion equation
213,454.19 : 320,215.85 = 65,675.63 : x - Step 2: Convert to fraction form
213,454.19/320,215.85 = 65,675.63/x - Step 3: Cross multiply
213,454.19x = 320,215.85 × 65,675.63 - Step 4: Simplify right side
213,454.19x = 21,030,375,755.28 - Step 5: Solve for x
x = 21,030,375,755.28/213,454.19 - Step 6: Final answer
x = 98,524.07
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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.