Finding the Fourth Proportional to 320,915.04, 442,958.76 and 207,745.44
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Solution
The fourth proportional to 320,915.04, 442,958.76 and 207,745.44 is: 286,750.86
Step by Step Solution
- Step 1: Write the proportion equation
320,915.04 : 442,958.76 = 207,745.44 : x - Step 2: Convert to fraction form
320,915.04/442,958.76 = 207,745.44/x - Step 3: Cross multiply
320,915.04x = 442,958.76 × 207,745.44 - Step 4: Simplify right side
320,915.04x = 92,022,662,498.05 - Step 5: Solve for x
x = 92,022,662,498.05/320,915.04 - Step 6: Final answer
x = 286,750.86
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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.