Finding the Fourth Proportional to 202,396.18, 279,189.64 and 130,776.20
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Solution
The fourth proportional to 202,396.18, 279,189.64 and 130,776.20 is: 180,395.50
Step by Step Solution
- Step 1: Write the proportion equation
202,396.18 : 279,189.64 = 130,776.20 : x - Step 2: Convert to fraction form
202,396.18/279,189.64 = 130,776.20/x - Step 3: Cross multiply
202,396.18x = 279,189.64 × 130,776.20 - Step 4: Simplify right side
202,396.18x = 36,511,360,372.09 - Step 5: Solve for x
x = 36,511,360,372.09/202,396.18 - Step 6: Final answer
x = 180,395.50
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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.