Finding the Fourth Proportional to 326,317.96, 449,479.75 and 230,660.20
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Solution
The fourth proportional to 326,317.96, 449,479.75 and 230,660.20 is: 317,717.99
Step by Step Solution
- Step 1: Write the proportion equation
326,317.96 : 449,479.75 = 230,660.20 : x - Step 2: Convert to fraction form
326,317.96/449,479.75 = 230,660.20/x - Step 3: Cross multiply
326,317.96x = 449,479.75 × 230,660.20 - Step 4: Simplify right side
326,317.96x = 103,677,086,206.90 - Step 5: Solve for x
x = 103,677,086,206.90/326,317.96 - Step 6: Final answer
x = 317,717.99
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1.5x scale
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.