Finding the Fourth Proportional to 213,473.39, 320,204.58 and 69,378.41
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Solution
The fourth proportional to 213,473.39, 320,204.58 and 69,378.41 is: 104,065.82
Step by Step Solution
- Step 1: Write the proportion equation
213,473.39 : 320,204.58 = 69,378.41 : x - Step 2: Convert to fraction form
213,473.39/320,204.58 = 69,378.41/x - Step 3: Cross multiply
213,473.39x = 320,204.58 × 69,378.41 - Step 4: Simplify right side
213,473.39x = 22,215,282,687.20 - Step 5: Solve for x
x = 22,215,282,687.20/213,473.39 - Step 6: Final answer
x = 104,065.82
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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.