Finding the Fourth Proportional to 307,872.70, 461,809.05 and 202,810.30
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Solution
The fourth proportional to 307,872.70, 461,809.05 and 202,810.30 is: 304,215.45
Step by Step Solution
- Step 1: Write the proportion equation
307,872.70 : 461,809.05 = 202,810.30 : x - Step 2: Convert to fraction form
307,872.70/461,809.05 = 202,810.30/x - Step 3: Cross multiply
307,872.70x = 461,809.05 × 202,810.30 - Step 4: Simplify right side
307,872.70x = 93,659,631,973.22 - Step 5: Solve for x
x = 93,659,631,973.22/307,872.70 - Step 6: Final answer
x = 304,215.45
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1.5x scale
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.