Finding the Fourth Proportional to 207,260.12, 310,890.18 and 74,132.30
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Solution
The fourth proportional to 207,260.12, 310,890.18 and 74,132.30 is: 111,198.45
Step by Step Solution
- Step 1: Write the proportion equation
207,260.12 : 310,890.18 = 74,132.30 : x - Step 2: Convert to fraction form
207,260.12/310,890.18 = 74,132.30/x - Step 3: Cross multiply
207,260.12x = 310,890.18 × 74,132.30 - Step 4: Simplify right side
207,260.12x = 23,047,004,090.81 - Step 5: Solve for x
x = 23,047,004,090.81/207,260.12 - Step 6: Final answer
x = 111,198.45
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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.