Finding the Fourth Proportional to 273,197.80, 409,796.70 and 86,209.30
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Solution
The fourth proportional to 273,197.80, 409,796.70 and 86,209.30 is: 129,313.95
Step by Step Solution
- Step 1: Write the proportion equation
273,197.80 : 409,796.70 = 86,209.30 : x - Step 2: Convert to fraction form
273,197.80/409,796.70 = 86,209.30/x - Step 3: Cross multiply
273,197.80x = 409,796.70 × 86,209.30 - Step 4: Simplify right side
273,197.80x = 35,328,286,649.31 - Step 5: Solve for x
x = 35,328,286,649.31/273,197.80 - Step 6: Final answer
x = 129,313.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.