Finding the Fourth Proportional to 202,720.60, 278,210.21 and 186,624.28
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Solution
The fourth proportional to 202,720.60, 278,210.21 and 186,624.28 is: 256,119.90
Step by Step Solution
- Step 1: Write the proportion equation
202,720.60 : 278,210.21 = 186,624.28 : x - Step 2: Convert to fraction form
202,720.60/278,210.21 = 186,624.28/x - Step 3: Cross multiply
202,720.60x = 278,210.21 × 186,624.28 - Step 4: Simplify right side
202,720.60x = 51,920,780,129.90 - Step 5: Solve for x
x = 51,920,780,129.90/202,720.60 - Step 6: Final answer
x = 256,119.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.