Finding the Fourth Proportional to 372,379.14, 513,868.07 and 211,230.72
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Solution
The fourth proportional to 372,379.14, 513,868.07 and 211,230.72 is: 291,489.80
Step by Step Solution
- Step 1: Write the proportion equation
372,379.14 : 513,868.07 = 211,230.72 : x - Step 2: Convert to fraction form
372,379.14/513,868.07 = 211,230.72/x - Step 3: Cross multiply
372,379.14x = 513,868.07 × 211,230.72 - Step 4: Simplify right side
372,379.14x = 108,544,721,354.96 - Step 5: Solve for x
x = 108,544,721,354.96/372,379.14 - Step 6: Final answer
x = 291,489.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.