Finding the Fourth Proportional to 207,036.08, 310,555.20 and 57,276.80
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Solution
The fourth proportional to 207,036.08, 310,555.20 and 57,276.80 is: 85,915.50
Step by Step Solution
- Step 1: Write the proportion equation
207,036.08 : 310,555.20 = 57,276.80 : x - Step 2: Convert to fraction form
207,036.08/310,555.20 = 57,276.80/x - Step 3: Cross multiply
207,036.08x = 310,555.20 × 57,276.80 - Step 4: Simplify right side
207,036.08x = 17,787,608,079.36 - Step 5: Solve for x
x = 17,787,608,079.36/207,036.08 - Step 6: Final answer
x = 85,915.50
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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.