Finding the Fourth Proportional to 421,576.99, 632,366.57 and 172,258.99
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Solution
The fourth proportional to 421,576.99, 632,366.57 and 172,258.99 is: 258,388.93
Step by Step Solution
- Step 1: Write the proportion equation
421,576.99 : 632,366.57 = 172,258.99 : x - Step 2: Convert to fraction form
421,576.99/632,366.57 = 172,258.99/x - Step 3: Cross multiply
421,576.99x = 632,366.57 × 172,258.99 - Step 4: Simplify right side
421,576.99x = 108,930,825,796.67 - Step 5: Solve for x
x = 108,930,825,796.67/421,576.99 - Step 6: Final answer
x = 258,388.93
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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.