Finding the Fourth Proportional to 325,475.10, 488,290.59 and 135,829.98
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Solution
The fourth proportional to 325,475.10, 488,290.59 and 135,829.98 is: 203,777.50
Step by Step Solution
- Step 1: Write the proportion equation
325,475.10 : 488,290.59 = 135,829.98 : x - Step 2: Convert to fraction form
325,475.10/488,290.59 = 135,829.98/x - Step 3: Cross multiply
325,475.10x = 488,290.59 × 135,829.98 - Step 4: Simplify right side
325,475.10x = 66,324,501,073.89 - Step 5: Solve for x
x = 66,324,501,073.89/325,475.10 - Step 6: Final answer
x = 203,777.50
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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.