Finding the Fourth Proportional to 319,742.11, 441,247.19 and 176,499.08
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Solution
The fourth proportional to 319,742.11, 441,247.19 and 176,499.08 is: 243,570.43
Step by Step Solution
- Step 1: Write the proportion equation
319,742.11 : 441,247.19 = 176,499.08 : x - Step 2: Convert to fraction form
319,742.11/441,247.19 = 176,499.08/x - Step 3: Cross multiply
319,742.11x = 441,247.19 × 176,499.08 - Step 4: Simplify right side
319,742.11x = 77,879,723,087.59 - Step 5: Solve for x
x = 77,879,723,087.59/319,742.11 - Step 6: Final answer
x = 243,570.43
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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.