Finding the Fourth Proportional to 402,479.97, 555,435.68 and 221,198.33
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Solution
The fourth proportional to 402,479.97, 555,435.68 and 221,198.33 is: 305,261.01
Step by Step Solution
- Step 1: Write the proportion equation
402,479.97 : 555,435.68 = 221,198.33 : x - Step 2: Convert to fraction form
402,479.97/555,435.68 = 221,198.33/x - Step 3: Cross multiply
402,479.97x = 555,435.68 × 221,198.33 - Step 4: Simplify right side
402,479.97x = 122,861,440,955.24 - Step 5: Solve for x
x = 122,861,440,955.24/402,479.97 - Step 6: Final answer
x = 305,261.01
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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.