Finding the Fourth Proportional to 398,181.12, 597,202.56 and 135,525.12
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Solution
The fourth proportional to 398,181.12, 597,202.56 and 135,525.12 is: 203,264.15
Step by Step Solution
- Step 1: Write the proportion equation
398,181.12 : 597,202.56 = 135,525.12 : x - Step 2: Convert to fraction form
398,181.12/597,202.56 = 135,525.12/x - Step 3: Cross multiply
398,181.12x = 597,202.56 × 135,525.12 - Step 4: Simplify right side
398,181.12x = 80,935,948,608.31 - Step 5: Solve for x
x = 80,935,948,608.31/398,181.12 - Step 6: Final answer
x = 203,264.15
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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.