Finding the Fourth Proportional to 191,187.81, 263,828.34 and 106,303.05
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Solution
The fourth proportional to 191,187.81, 263,828.34 and 106,303.05 is: 146,692.18
Step by Step Solution
- Step 1: Write the proportion equation
191,187.81 : 263,828.34 = 106,303.05 : x - Step 2: Convert to fraction form
191,187.81/263,828.34 = 106,303.05/x - Step 3: Cross multiply
191,187.81x = 263,828.34 × 106,303.05 - Step 4: Simplify right side
191,187.81x = 28,045,757,218.44 - Step 5: Solve for x
x = 28,045,757,218.44/191,187.81 - Step 6: Final answer
x = 146,692.18
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.