Finding the Fourth Proportional to 328,864.68, 493,310.79 and 104,220.18
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Solution
The fourth proportional to 328,864.68, 493,310.79 and 104,220.18 is: 156,334.63
Step by Step Solution
- Step 1: Write the proportion equation
328,864.68 : 493,310.79 = 104,220.18 : x - Step 2: Convert to fraction form
328,864.68/493,310.79 = 104,220.18/x - Step 3: Cross multiply
328,864.68x = 493,310.79 × 104,220.18 - Step 4: Simplify right side
328,864.68x = 51,412,939,329.74 - Step 5: Solve for x
x = 51,412,939,329.74/328,864.68 - Step 6: Final answer
x = 156,334.63
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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.