Finding the Fourth Proportional to 211,378.11, 291,692.61 and 126,541.95
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Solution
The fourth proportional to 211,378.11, 291,692.61 and 126,541.95 is: 174,622.39
Step by Step Solution
- Step 1: Write the proportion equation
211,378.11 : 291,692.61 = 126,541.95 : x - Step 2: Convert to fraction form
211,378.11/291,692.61 = 126,541.95/x - Step 3: Cross multiply
211,378.11x = 291,692.61 × 126,541.95 - Step 4: Simplify right side
211,378.11x = 36,911,351,669.99 - Step 5: Solve for x
x = 36,911,351,669.99/211,378.11 - Step 6: Final answer
x = 174,622.39
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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.