Finding the Fourth Proportional to 221,872.48, 332,776.08 and 72,126.40
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Solution
The fourth proportional to 221,872.48, 332,776.08 and 72,126.40 is: 108,178.99
Step by Step Solution
- Step 1: Write the proportion equation
221,872.48 : 332,776.08 = 72,126.40 : x - Step 2: Convert to fraction form
221,872.48/332,776.08 = 72,126.40/x - Step 3: Cross multiply
221,872.48x = 332,776.08 × 72,126.40 - Step 4: Simplify right side
221,872.48x = 24,001,940,656.51 - Step 5: Solve for x
x = 24,001,940,656.51/221,872.48 - Step 6: Final answer
x = 108,178.99
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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.