Finding the Fourth Proportional to 323,276.40, 485,080.68 and 143,485.08
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Solution
The fourth proportional to 323,276.40, 485,080.68 and 143,485.08 is: 215,301.33
Step by Step Solution
- Step 1: Write the proportion equation
323,276.40 : 485,080.68 = 143,485.08 : x - Step 2: Convert to fraction form
323,276.40/485,080.68 = 143,485.08/x - Step 3: Cross multiply
323,276.40x = 485,080.68 × 143,485.08 - Step 4: Simplify right side
323,276.40x = 69,601,840,176.25 - Step 5: Solve for x
x = 69,601,840,176.25/323,276.40 - Step 6: Final answer
x = 215,301.33
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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.