Finding the Fourth Proportional to 276,872.19, 415,331.70 and 77,192.75
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Solution
The fourth proportional to 276,872.19, 415,331.70 and 77,192.75 is: 115,795.65
Step by Step Solution
- Step 1: Write the proportion equation
276,872.19 : 415,331.70 = 77,192.75 : x - Step 2: Convert to fraction form
276,872.19/415,331.70 = 77,192.75/x - Step 3: Cross multiply
276,872.19x = 415,331.70 × 77,192.75 - Step 4: Simplify right side
276,872.19x = 32,060,594,932.00 - Step 5: Solve for x
x = 32,060,594,932.00/276,872.19 - Step 6: Final answer
x = 115,795.65
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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.