Finding the Fourth Proportional to 221,487.12, 332,274.44 and 81,246.96
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Solution
The fourth proportional to 221,487.12, 332,274.44 and 81,246.96 is: 121,886.49
Step by Step Solution
- Step 1: Write the proportion equation
221,487.12 : 332,274.44 = 81,246.96 : x - Step 2: Convert to fraction form
221,487.12/332,274.44 = 81,246.96/x - Step 3: Cross multiply
221,487.12x = 332,274.44 × 81,246.96 - Step 4: Simplify right side
221,487.12x = 26,996,288,135.70 - Step 5: Solve for x
x = 26,996,288,135.70/221,487.12 - Step 6: Final answer
x = 121,886.49
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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.