Finding the Fourth Proportional to 328,891.20, 493,336.80 and 118,501.80
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Solution
The fourth proportional to 328,891.20, 493,336.80 and 118,501.80 is: 177,752.70
Step by Step Solution
- Step 1: Write the proportion equation
328,891.20 : 493,336.80 = 118,501.80 : x - Step 2: Convert to fraction form
328,891.20/493,336.80 = 118,501.80/x - Step 3: Cross multiply
328,891.20x = 493,336.80 × 118,501.80 - Step 4: Simplify right side
328,891.20x = 58,461,298,806.24 - Step 5: Solve for x
x = 58,461,298,806.24/328,891.20 - Step 6: Final answer
x = 177,752.70
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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.