Finding the Fourth Proportional to 207,279.40, 310,919.10 and 190,949.80
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Solution
The fourth proportional to 207,279.40, 310,919.10 and 190,949.80 is: 286,424.70
Step by Step Solution
- Step 1: Write the proportion equation
207,279.40 : 310,919.10 = 190,949.80 : x - Step 2: Convert to fraction form
207,279.40/310,919.10 = 190,949.80/x - Step 3: Cross multiply
207,279.40x = 310,919.10 × 190,949.80 - Step 4: Simplify right side
207,279.40x = 59,369,939,961.18 - Step 5: Solve for x
x = 59,369,939,961.18/207,279.40 - Step 6: Final answer
x = 286,424.70
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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.