Finding the Fourth Proportional to 311,703.40, 430,155.30 and 177,564.52
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Solution
The fourth proportional to 311,703.40, 430,155.30 and 177,564.52 is: 245,041.66
Step by Step Solution
- Step 1: Write the proportion equation
311,703.40 : 430,155.30 = 177,564.52 : x - Step 2: Convert to fraction form
311,703.40/430,155.30 = 177,564.52/x - Step 3: Cross multiply
311,703.40x = 430,155.30 × 177,564.52 - Step 4: Simplify right side
311,703.40x = 76,380,319,369.96 - Step 5: Solve for x
x = 76,380,319,369.96/311,703.40 - Step 6: Final answer
x = 245,041.66
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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.