Finding the Fourth Proportional to 325,115.40, 487,648.80 and 135,526.80
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Solution
The fourth proportional to 325,115.40, 487,648.80 and 135,526.80 is: 203,280.07
Step by Step Solution
- Step 1: Write the proportion equation
325,115.40 : 487,648.80 = 135,526.80 : x - Step 2: Convert to fraction form
325,115.40/487,648.80 = 135,526.80/x - Step 3: Cross multiply
325,115.40x = 487,648.80 × 135,526.80 - Step 4: Simplify right side
325,115.40x = 66,089,481,387.84 - Step 5: Solve for x
x = 66,089,481,387.84/325,115.40 - Step 6: Final answer
x = 203,280.07
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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.