Finding the Fourth Proportional to 221,207.80, 305,257.98 and 130,592.96
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Solution
The fourth proportional to 221,207.80, 305,257.98 and 130,592.96 is: 180,213.09
Step by Step Solution
- Step 1: Write the proportion equation
221,207.80 : 305,257.98 = 130,592.96 : x - Step 2: Convert to fraction form
221,207.80/305,257.98 = 130,592.96/x - Step 3: Cross multiply
221,207.80x = 305,257.98 × 130,592.96 - Step 4: Simplify right side
221,207.80x = 39,864,542,082.19 - Step 5: Solve for x
x = 39,864,542,082.19/221,207.80 - Step 6: Final answer
x = 180,213.09
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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.