Finding the Fourth Proportional to 387,830.99, 534,765.49 and 273,072.95
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Solution
The fourth proportional to 387,830.99, 534,765.49 and 273,072.95 is: 376,529.97
Step by Step Solution
- Step 1: Write the proportion equation
387,830.99 : 534,765.49 = 273,072.95 : x - Step 2: Convert to fraction form
387,830.99/534,765.49 = 273,072.95/x - Step 3: Cross multiply
387,830.99x = 534,765.49 × 273,072.95 - Step 4: Simplify right side
387,830.99x = 146,029,989,912.50 - Step 5: Solve for x
x = 146,029,989,912.50/387,830.99 - Step 6: Final answer
x = 376,529.97
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1.5x scale
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.