Finding the Fourth Proportional to 355,226.20, 490,188.62 and 202,280.02
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Solution
The fourth proportional to 355,226.20, 490,188.62 and 202,280.02 is: 279,133.03
Step by Step Solution
- Step 1: Write the proportion equation
355,226.20 : 490,188.62 = 202,280.02 : x - Step 2: Convert to fraction form
355,226.20/490,188.62 = 202,280.02/x - Step 3: Cross multiply
355,226.20x = 490,188.62 × 202,280.02 - Step 4: Simplify right side
355,226.20x = 99,155,363,857.37 - Step 5: Solve for x
x = 99,155,363,857.37/355,226.20 - Step 6: Final answer
x = 279,133.03
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.