Finding the Fourth Proportional to 378,021.80, 567,032.70 and 259,923.80
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Solution
The fourth proportional to 378,021.80, 567,032.70 and 259,923.80 is: 389,885.70
Step by Step Solution
- Step 1: Write the proportion equation
378,021.80 : 567,032.70 = 259,923.80 : x - Step 2: Convert to fraction form
378,021.80/567,032.70 = 259,923.80/x - Step 3: Cross multiply
378,021.80x = 567,032.70 × 259,923.80 - Step 4: Simplify right side
378,021.80x = 147,385,294,108.26 - Step 5: Solve for x
x = 147,385,294,108.26/378,021.80 - Step 6: Final answer
x = 389,885.70
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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.