Finding the Fourth Proportional to 208,819.32, 288,170.81 and 113,325.99
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Solution
The fourth proportional to 208,819.32, 288,170.81 and 113,325.99 is: 156,389.95
Step by Step Solution
- Step 1: Write the proportion equation
208,819.32 : 288,170.81 = 113,325.99 : x - Step 2: Convert to fraction form
208,819.32/288,170.81 = 113,325.99/x - Step 3: Cross multiply
208,819.32x = 288,170.81 × 113,325.99 - Step 4: Simplify right side
208,819.32x = 32,657,242,332.35 - Step 5: Solve for x
x = 32,657,242,332.35/208,819.32 - Step 6: Final answer
x = 156,389.95
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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.