Finding the Fourth Proportional to 310,631.20, 465,946.80 and 275,201.80
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Solution
The fourth proportional to 310,631.20, 465,946.80 and 275,201.80 is: 412,802.70
Step by Step Solution
- Step 1: Write the proportion equation
310,631.20 : 465,946.80 = 275,201.80 : x - Step 2: Convert to fraction form
310,631.20/465,946.80 = 275,201.80/x - Step 3: Cross multiply
310,631.20x = 465,946.80 × 275,201.80 - Step 4: Simplify right side
310,631.20x = 128,229,398,064.24 - Step 5: Solve for x
x = 128,229,398,064.24/310,631.20 - Step 6: Final answer
x = 412,802.70
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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.