Finding the Fourth Proportional to 221,817.92, 306,108.50 and 121,215.92
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Solution
The fourth proportional to 221,817.92, 306,108.50 and 121,215.92 is: 167,277.84
Step by Step Solution
- Step 1: Write the proportion equation
221,817.92 : 306,108.50 = 121,215.92 : x - Step 2: Convert to fraction form
221,817.92/306,108.50 = 121,215.92/x - Step 3: Cross multiply
221,817.92x = 306,108.50 × 121,215.92 - Step 4: Simplify right side
221,817.92x = 37,105,221,310.70 - Step 5: Solve for x
x = 37,105,221,310.70/221,817.92 - Step 6: Final answer
x = 167,277.84
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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.