Finding the Fourth Proportional to 421,336.76, 632,006.34 and 121,841.68
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Solution
The fourth proportional to 421,336.76, 632,006.34 and 121,841.68 is: 182,762.87
Step by Step Solution
- Step 1: Write the proportion equation
421,336.76 : 632,006.34 = 121,841.68 : x - Step 2: Convert to fraction form
421,336.76/632,006.34 = 121,841.68/x - Step 3: Cross multiply
421,336.76x = 632,006.34 × 121,841.68 - Step 4: Simplify right side
421,336.76x = 77,004,714,236.25 - Step 5: Solve for x
x = 77,004,714,236.25/421,336.76 - Step 6: Final answer
x = 182,762.87
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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.