Finding the Fourth Proportional to 367,128.13, 550,744.74 and 162,191.05
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Solution
The fourth proportional to 367,128.13, 550,744.74 and 162,191.05 is: 243,309.79
Step by Step Solution
- Step 1: Write the proportion equation
367,128.13 : 550,744.74 = 162,191.05 : x - Step 2: Convert to fraction form
367,128.13/550,744.74 = 162,191.05/x - Step 3: Cross multiply
367,128.13x = 550,744.74 × 162,191.05 - Step 4: Simplify right side
367,128.13x = 89,325,867,662.58 - Step 5: Solve for x
x = 89,325,867,662.58/367,128.13 - Step 6: Final answer
x = 243,309.79
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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.