Finding the Fourth Proportional to 207,266.76, 310,867.14 and 74,122.20
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Solution
The fourth proportional to 207,266.76, 310,867.14 and 74,122.20 is: 111,171.50
Step by Step Solution
- Step 1: Write the proportion equation
207,266.76 : 310,867.14 = 74,122.20 : x - Step 2: Convert to fraction form
207,266.76/310,867.14 = 74,122.20/x - Step 3: Cross multiply
207,266.76x = 310,867.14 × 74,122.20 - Step 4: Simplify right side
207,266.76x = 23,042,156,324.51 - Step 5: Solve for x
x = 23,042,156,324.51/207,266.76 - Step 6: Final answer
x = 111,171.50
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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.