Finding the Fourth Proportional to 266,945.11, 400,138.71 and 89,305.99
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Solution
The fourth proportional to 266,945.11, 400,138.71 and 89,305.99 is: 133,865.66
Step by Step Solution
- Step 1: Write the proportion equation
266,945.11 : 400,138.71 = 89,305.99 : x - Step 2: Convert to fraction form
266,945.11/400,138.71 = 89,305.99/x - Step 3: Cross multiply
266,945.11x = 400,138.71 × 89,305.99 - Step 4: Simplify right side
266,945.11x = 35,734,783,633.87 - Step 5: Solve for x
x = 35,734,783,633.87/266,945.11 - Step 6: Final answer
x = 133,865.66
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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.