Finding the Fourth Proportional to 426,202.10, 638,525.55 and 259,795.70
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Solution
The fourth proportional to 426,202.10, 638,525.55 and 259,795.70 is: 389,219.56
Step by Step Solution
- Step 1: Write the proportion equation
426,202.10 : 638,525.55 = 259,795.70 : x - Step 2: Convert to fraction form
426,202.10/638,525.55 = 259,795.70/x - Step 3: Cross multiply
426,202.10x = 638,525.55 × 259,795.70 - Step 4: Simplify right side
426,202.10x = 165,886,192,230.14 - Step 5: Solve for x
x = 165,886,192,230.14/426,202.10 - Step 6: Final answer
x = 389,219.56
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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.