Finding the Fourth Proportional to 221,979.29, 332,971.97 and 72,220.34
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Solution
The fourth proportional to 221,979.29, 332,971.97 and 72,220.34 is: 108,331.50
Step by Step Solution
- Step 1: Write the proportion equation
221,979.29 : 332,971.97 = 72,220.34 : x - Step 2: Convert to fraction form
221,979.29/332,971.97 = 72,220.34/x - Step 3: Cross multiply
221,979.29x = 332,971.97 × 72,220.34 - Step 4: Simplify right side
221,979.29x = 24,047,349,355.20 - Step 5: Solve for x
x = 24,047,349,355.20/221,979.29 - Step 6: Final answer
x = 108,331.50
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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.