Finding the Fourth Proportional to 328,743.20, 493,114.80 and 216,768.80
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Solution
The fourth proportional to 328,743.20, 493,114.80 and 216,768.80 is: 325,153.20
Step by Step Solution
- Step 1: Write the proportion equation
328,743.20 : 493,114.80 = 216,768.80 : x - Step 2: Convert to fraction form
328,743.20/493,114.80 = 216,768.80/x - Step 3: Cross multiply
328,743.20x = 493,114.80 × 216,768.80 - Step 4: Simplify right side
328,743.20x = 106,891,903,458.24 - Step 5: Solve for x
x = 106,891,903,458.24/328,743.20 - Step 6: Final answer
x = 325,153.20
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1.5x scale
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.