Finding the Fourth Proportional to 307,939.20, 461,908.80 and 202,876.80
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Solution
The fourth proportional to 307,939.20, 461,908.80 and 202,876.80 is: 304,315.20
Step by Step Solution
- Step 1: Write the proportion equation
307,939.20 : 461,908.80 = 202,876.80 : x - Step 2: Convert to fraction form
307,939.20/461,908.80 = 202,876.80/x - Step 3: Cross multiply
307,939.20x = 461,908.80 × 202,876.80 - Step 4: Simplify right side
307,939.20x = 93,710,579,235.84 - Step 5: Solve for x
x = 93,710,579,235.84/307,939.20 - Step 6: Final answer
x = 304,315.20
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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.