Finding the Fourth Proportional to 318,293.70, 477,471.73 and 115,944.79
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Solution
The fourth proportional to 318,293.70, 477,471.73 and 115,944.79 is: 173,928.54
Step by Step Solution
- Step 1: Write the proportion equation
318,293.70 : 477,471.73 = 115,944.79 : x - Step 2: Convert to fraction form
318,293.70/477,471.73 = 115,944.79/x - Step 3: Cross multiply
318,293.70x = 477,471.73 × 115,944.79 - Step 4: Simplify right side
318,293.70x = 55,360,359,948.65 - Step 5: Solve for x
x = 55,360,359,948.65/318,293.70 - Step 6: Final answer
x = 173,928.54
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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.