Finding the Fourth Proportional to 311,961.09, 430,525.99 and 175,945.41
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Solution
The fourth proportional to 311,961.09, 430,525.99 and 175,945.41 is: 242,815.77
Step by Step Solution
- Step 1: Write the proportion equation
311,961.09 : 430,525.99 = 175,945.41 : x - Step 2: Convert to fraction form
311,961.09/430,525.99 = 175,945.41/x - Step 3: Cross multiply
311,961.09x = 430,525.99 × 175,945.41 - Step 4: Simplify right side
311,961.09x = 75,749,071,826.21 - Step 5: Solve for x
x = 75,749,071,826.21/311,961.09 - Step 6: Final answer
x = 242,815.77
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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.