Finding the Fourth Proportional to 221,207.63, 331,812.68 and 54,995.63
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Solution
The fourth proportional to 221,207.63, 331,812.68 and 54,995.63 is: 82,493.75
Step by Step Solution
- Step 1: Write the proportion equation
221,207.63 : 331,812.68 = 54,995.63 : x - Step 2: Convert to fraction form
221,207.63/331,812.68 = 54,995.63/x - Step 3: Cross multiply
221,207.63x = 331,812.68 × 54,995.63 - Step 4: Simplify right side
221,207.63x = 18,248,245,444.55 - Step 5: Solve for x
x = 18,248,245,444.55/221,207.63 - Step 6: Final answer
x = 82,493.75
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1.5x scale
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.