Finding the Fourth Proportional to 207,287.80, 310,931.70 and 193,463.80
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Solution
The fourth proportional to 207,287.80, 310,931.70 and 193,463.80 is: 290,195.70
Step by Step Solution
- Step 1: Write the proportion equation
207,287.80 : 310,931.70 = 193,463.80 : x - Step 2: Convert to fraction form
207,287.80/310,931.70 = 193,463.80/x - Step 3: Cross multiply
207,287.80x = 310,931.70 × 193,463.80 - Step 4: Simplify right side
207,287.80x = 60,154,028,222.46 - Step 5: Solve for x
x = 60,154,028,222.46/207,287.80 - Step 6: Final answer
x = 290,195.70
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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.