Finding the Fourth Proportional to 381,347.10, 526,305.78 and 220,201.92
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Solution
The fourth proportional to 381,347.10, 526,305.78 and 220,201.92 is: 303,905.66
Step by Step Solution
- Step 1: Write the proportion equation
381,347.10 : 526,305.78 = 220,201.92 : x - Step 2: Convert to fraction form
381,347.10/526,305.78 = 220,201.92/x - Step 3: Cross multiply
381,347.10x = 526,305.78 × 220,201.92 - Step 4: Simplify right side
381,347.10x = 115,893,543,263.10 - Step 5: Solve for x
x = 115,893,543,263.10/381,347.10 - Step 6: Final answer
x = 303,905.66
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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.