Finding the Fourth Proportional to 397,338.12, 596,106.54 and 131,113.80
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Solution
The fourth proportional to 397,338.12, 596,106.54 and 131,113.80 is: 196,703.49
Step by Step Solution
- Step 1: Write the proportion equation
397,338.12 : 596,106.54 = 131,113.80 : x - Step 2: Convert to fraction form
397,338.12/596,106.54 = 131,113.80/x - Step 3: Cross multiply
397,338.12x = 596,106.54 × 131,113.80 - Step 4: Simplify right side
397,338.12x = 78,157,793,664.25 - Step 5: Solve for x
x = 78,157,793,664.25/397,338.12 - Step 6: Final answer
x = 196,703.49
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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.