Finding the Fourth Proportional to 220,622.91, 330,967.17 and 102,306.21
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Solution
The fourth proportional to 220,622.91, 330,967.17 and 102,306.21 is: 153,474.53
Step by Step Solution
- Step 1: Write the proportion equation
220,622.91 : 330,967.17 = 102,306.21 : x - Step 2: Convert to fraction form
220,622.91/330,967.17 = 102,306.21/x - Step 3: Cross multiply
220,622.91x = 330,967.17 × 102,306.21 - Step 4: Simplify right side
220,622.91x = 33,859,996,797.13 - Step 5: Solve for x
x = 33,859,996,797.13/220,622.91 - Step 6: Final answer
x = 153,474.53
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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.