Finding the Fourth Proportional to 307,639.80, 461,459.70 and 141,427.80
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Solution
The fourth proportional to 307,639.80, 461,459.70 and 141,427.80 is: 212,141.70
Step by Step Solution
- Step 1: Write the proportion equation
307,639.80 : 461,459.70 = 141,427.80 : x - Step 2: Convert to fraction form
307,639.80/461,459.70 = 141,427.80/x - Step 3: Cross multiply
307,639.80x = 461,459.70 × 141,427.80 - Step 4: Simplify right side
307,639.80x = 65,263,230,159.66 - Step 5: Solve for x
x = 65,263,230,159.66/307,639.80 - Step 6: Final answer
x = 212,141.70
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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.