Finding the Fourth Proportional to 321,529.44, 443,715.36 and 176,349.12
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Solution
The fourth proportional to 321,529.44, 443,715.36 and 176,349.12 is: 243,364.38
Step by Step Solution
- Step 1: Write the proportion equation
321,529.44 : 443,715.36 = 176,349.12 : x - Step 2: Convert to fraction form
321,529.44/443,715.36 = 176,349.12/x - Step 3: Cross multiply
321,529.44x = 443,715.36 × 176,349.12 - Step 4: Simplify right side
321,529.44x = 78,248,813,266.48 - Step 5: Solve for x
x = 78,248,813,266.48/321,529.44 - Step 6: Final answer
x = 243,364.38
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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.