Finding the Fourth Proportional to 230,660.63, 318,311.87 and 128,686.11
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Solution
The fourth proportional to 230,660.63, 318,311.87 and 128,686.11 is: 177,586.95
Step by Step Solution
- Step 1: Write the proportion equation
230,660.63 : 318,311.87 = 128,686.11 : x - Step 2: Convert to fraction form
230,660.63/318,311.87 = 128,686.11/x - Step 3: Cross multiply
230,660.63x = 318,311.87 × 128,686.11 - Step 4: Simplify right side
230,660.63x = 40,962,317,434.62 - Step 5: Solve for x
x = 40,962,317,434.62/230,660.63 - Step 6: Final answer
x = 177,586.95
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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.