Finding the Fourth Proportional to 303,337.80, 455,006.70 and 81,721.80
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Solution
The fourth proportional to 303,337.80, 455,006.70 and 81,721.80 is: 122,582.70
Step by Step Solution
- Step 1: Write the proportion equation
303,337.80 : 455,006.70 = 81,721.80 : x - Step 2: Convert to fraction form
303,337.80/455,006.70 = 81,721.80/x - Step 3: Cross multiply
303,337.80x = 455,006.70 × 81,721.80 - Step 4: Simplify right side
303,337.80x = 37,183,966,536.06 - Step 5: Solve for x
x = 37,183,966,536.06/303,337.80 - Step 6: Final answer
x = 122,582.70
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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.