Finding the Fourth Proportional to 221,950.72, 306,293.28 and 121,348.72
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Solution
The fourth proportional to 221,950.72, 306,293.28 and 121,348.72 is: 167,461.94
Step by Step Solution
- Step 1: Write the proportion equation
221,950.72 : 306,293.28 = 121,348.72 : x - Step 2: Convert to fraction form
221,950.72/306,293.28 = 121,348.72/x - Step 3: Cross multiply
221,950.72x = 306,293.28 × 121,348.72 - Step 4: Simplify right side
221,950.72x = 37,168,297,472.60 - Step 5: Solve for x
x = 37,168,297,472.60/221,950.72 - Step 6: Final answer
x = 167,461.94
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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.