Finding the Fourth Proportional to 211,185.12, 291,432.48 and 115,692.48
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Solution
The fourth proportional to 211,185.12, 291,432.48 and 115,692.48 is: 159,653.99
Step by Step Solution
- Step 1: Write the proportion equation
211,185.12 : 291,432.48 = 115,692.48 : x - Step 2: Convert to fraction form
211,185.12/291,432.48 = 115,692.48/x - Step 3: Cross multiply
211,185.12x = 291,432.48 × 115,692.48 - Step 4: Simplify right side
211,185.12x = 33,716,546,363.75 - Step 5: Solve for x
x = 33,716,546,363.75/211,185.12 - Step 6: Final answer
x = 159,653.99
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1.5x scale
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.