Finding the Fourth Proportional to 194,297.21, 291,485.09 and 81,977.70
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Solution
The fourth proportional to 194,297.21, 291,485.09 and 81,977.70 is: 122,983.12
Step by Step Solution
- Step 1: Write the proportion equation
194,297.21 : 291,485.09 = 81,977.70 : x - Step 2: Convert to fraction form
194,297.21/291,485.09 = 81,977.70/x - Step 3: Cross multiply
194,297.21x = 291,485.09 × 81,977.70 - Step 4: Simplify right side
194,297.21x = 23,895,276,852.60 - Step 5: Solve for x
x = 23,895,276,852.60/194,297.21 - Step 6: Final answer
x = 122,983.12
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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.