Finding the Fourth Proportional to 311,994.38, 467,991.21 and 101,631.98
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Solution
The fourth proportional to 311,994.38, 467,991.21 and 101,631.98 is: 152,447.85
Step by Step Solution
- Step 1: Write the proportion equation
311,994.38 : 467,991.21 = 101,631.98 : x - Step 2: Convert to fraction form
311,994.38/467,991.21 = 101,631.98/x - Step 3: Cross multiply
311,994.38x = 467,991.21 × 101,631.98 - Step 4: Simplify right side
311,994.38x = 47,562,873,294.90 - Step 5: Solve for x
x = 47,562,873,294.90/311,994.38 - Step 6: Final answer
x = 152,447.85
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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.