Finding the Fourth Proportional to 258,750.40, 388,125.60 and 132,341.80
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Solution
The fourth proportional to 258,750.40, 388,125.60 and 132,341.80 is: 198,512.70
Step by Step Solution
- Step 1: Write the proportion equation
258,750.40 : 388,125.60 = 132,341.80 : x - Step 2: Convert to fraction form
258,750.40/388,125.60 = 132,341.80/x - Step 3: Cross multiply
258,750.40x = 388,125.60 × 132,341.80 - Step 4: Simplify right side
258,750.40x = 51,365,240,530.08 - Step 5: Solve for x
x = 51,365,240,530.08/258,750.40 - Step 6: Final answer
x = 198,512.70
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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.