Finding the Fourth Proportional to 366,987.80, 550,481.70 and 320,331.80
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Solution
The fourth proportional to 366,987.80, 550,481.70 and 320,331.80 is: 480,497.70
Step by Step Solution
- Step 1: Write the proportion equation
366,987.80 : 550,481.70 = 320,331.80 : x - Step 2: Convert to fraction form
366,987.80/550,481.70 = 320,331.80/x - Step 3: Cross multiply
366,987.80x = 550,481.70 × 320,331.80 - Step 4: Simplify right side
366,987.80x = 176,336,793,828.06 - Step 5: Solve for x
x = 176,336,793,828.06/366,987.80 - Step 6: Final answer
x = 480,497.70
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1.5x scale
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.