Finding the Fourth Proportional to 214,206.10, 321,309.15 and 125,559.70
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Solution
The fourth proportional to 214,206.10, 321,309.15 and 125,559.70 is: 188,339.55
Step by Step Solution
- Step 1: Write the proportion equation
214,206.10 : 321,309.15 = 125,559.70 : x - Step 2: Convert to fraction form
214,206.10/321,309.15 = 125,559.70/x - Step 3: Cross multiply
214,206.10x = 321,309.15 × 125,559.70 - Step 4: Simplify right side
214,206.10x = 40,343,480,481.26 - Step 5: Solve for x
x = 40,343,480,481.26/214,206.10 - Step 6: Final answer
x = 188,339.55
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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.