Finding the Fourth Proportional to 213,278.29, 319,671.36 and 80,073.59
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Solution
The fourth proportional to 213,278.29, 319,671.36 and 80,073.59 is: 120,017.99
Step by Step Solution
- Step 1: Write the proportion equation
213,278.29 : 319,671.36 = 80,073.59 : x - Step 2: Convert to fraction form
213,278.29/319,671.36 = 80,073.59/x - Step 3: Cross multiply
213,278.29x = 319,671.36 × 80,073.59 - Step 4: Simplify right side
213,278.29x = 25,597,231,817.03 - Step 5: Solve for x
x = 25,597,231,817.03/213,278.29 - Step 6: Final answer
x = 120,017.99
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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.