Finding the Fourth Proportional to 221,462.98, 305,614.65 and 120,861.70
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Solution
The fourth proportional to 221,462.98, 305,614.65 and 120,861.70 is: 166,786.82
Step by Step Solution
- Step 1: Write the proportion equation
221,462.98 : 305,614.65 = 120,861.70 : x - Step 2: Convert to fraction form
221,462.98/305,614.65 = 120,861.70/x - Step 3: Cross multiply
221,462.98x = 305,614.65 × 120,861.70 - Step 4: Simplify right side
221,462.98x = 36,937,106,143.91 - Step 5: Solve for x
x = 36,937,106,143.91/221,462.98 - Step 6: Final answer
x = 166,786.82
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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.