Finding the Fourth Proportional to 213,014.03, 319,278.09 and 133,088.75
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Solution
The fourth proportional to 213,014.03, 319,278.09 and 133,088.75 is: 199,481.33
Step by Step Solution
- Step 1: Write the proportion equation
213,014.03 : 319,278.09 = 133,088.75 : x - Step 2: Convert to fraction form
213,014.03/319,278.09 = 133,088.75/x - Step 3: Cross multiply
213,014.03x = 319,278.09 × 133,088.75 - Step 4: Simplify right side
213,014.03x = 42,492,321,600.95 - Step 5: Solve for x
x = 42,492,321,600.95/213,014.03 - Step 6: Final answer
x = 199,481.33
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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.