Finding the Fourth Proportional to 576,107.18, 864,202.30 and 221,121.20
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Solution
The fourth proportional to 576,107.18, 864,202.30 and 221,121.20 is: 331,697.74
Step by Step Solution
- Step 1: Write the proportion equation
576,107.18 : 864,202.30 = 221,121.20 : x - Step 2: Convert to fraction form
576,107.18/864,202.30 = 221,121.20/x - Step 3: Cross multiply
576,107.18x = 864,202.30 × 221,121.20 - Step 4: Simplify right side
576,107.18x = 191,093,449,618.76 - Step 5: Solve for x
x = 191,093,449,618.76/576,107.18 - Step 6: Final answer
x = 331,697.74
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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.