Finding the Fourth Proportional to 239,299.10, 330,234.99 and 131,872.99
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Solution
The fourth proportional to 239,299.10, 330,234.99 and 131,872.99 is: 181,985.95
Step by Step Solution
- Step 1: Write the proportion equation
239,299.10 : 330,234.99 = 131,872.99 : x - Step 2: Convert to fraction form
239,299.10/330,234.99 = 131,872.99/x - Step 3: Cross multiply
239,299.10x = 330,234.99 × 131,872.99 - Step 4: Simplify right side
239,299.10x = 43,549,073,223.38 - Step 5: Solve for x
x = 43,549,073,223.38/239,299.10 - Step 6: Final answer
x = 181,985.95
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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.