Finding the Fourth Proportional to 207,104.80, 310,219.80 and 172,112.80
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Solution
The fourth proportional to 207,104.80, 310,219.80 and 172,112.80 is: 257,805.70
Step by Step Solution
- Step 1: Write the proportion equation
207,104.80 : 310,219.80 = 172,112.80 : x - Step 2: Convert to fraction form
207,104.80/310,219.80 = 172,112.80/x - Step 3: Cross multiply
207,104.80x = 310,219.80 × 172,112.80 - Step 4: Simplify right side
207,104.80x = 53,392,798,393.44 - Step 5: Solve for x
x = 53,392,798,393.44/207,104.80 - Step 6: Final answer
x = 257,805.70
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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.