Finding the Fourth Proportional to 208,258.20, 287,396.46 and 112,764.99
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Solution
The fourth proportional to 208,258.20, 287,396.46 and 112,764.99 is: 155,615.76
Step by Step Solution
- Step 1: Write the proportion equation
208,258.20 : 287,396.46 = 112,764.99 : x - Step 2: Convert to fraction form
208,258.20/287,396.46 = 112,764.99/x - Step 3: Cross multiply
208,258.20x = 287,396.46 × 112,764.99 - Step 4: Simplify right side
208,258.20x = 32,408,258,937.94 - Step 5: Solve for x
x = 32,408,258,937.94/208,258.20 - Step 6: Final answer
x = 155,615.76
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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.