Finding the Fourth Proportional to 353,806.88, 487,920.12 and 273,107.12
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Solution
The fourth proportional to 353,806.88, 487,920.12 and 273,107.12 is: 376,630.49
Step by Step Solution
- Step 1: Write the proportion equation
353,806.88 : 487,920.12 = 273,107.12 : x - Step 2: Convert to fraction form
353,806.88/487,920.12 = 273,107.12/x - Step 3: Cross multiply
353,806.88x = 487,920.12 × 273,107.12 - Step 4: Simplify right side
353,806.88x = 133,254,458,763.25 - Step 5: Solve for x
x = 133,254,458,763.25/353,806.88 - Step 6: Final answer
x = 376,630.49
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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.