Finding the Fourth Proportional to 420,532.24, 580,314.21 and 239,227.11
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Solution
The fourth proportional to 420,532.24, 580,314.21 and 239,227.11 is: 330,121.87
Step by Step Solution
- Step 1: Write the proportion equation
420,532.24 : 580,314.21 = 239,227.11 : x - Step 2: Convert to fraction form
420,532.24/580,314.21 = 239,227.11/x - Step 3: Cross multiply
420,532.24x = 580,314.21 × 239,227.11 - Step 4: Simplify right side
420,532.24x = 138,826,891,350.23 - Step 5: Solve for x
x = 138,826,891,350.23/420,532.24 - Step 6: Final answer
x = 330,121.87
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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.