Finding the Fourth Proportional to 398,611.24, 550,086.73 and 217,324.49
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Solution
The fourth proportional to 398,611.24, 550,086.73 and 217,324.49 is: 299,909.55
Step by Step Solution
- Step 1: Write the proportion equation
398,611.24 : 550,086.73 = 217,324.49 : x - Step 2: Convert to fraction form
398,611.24/550,086.73 = 217,324.49/x - Step 3: Cross multiply
398,611.24x = 550,086.73 × 217,324.49 - Step 4: Simplify right side
398,611.24x = 119,547,318,053.02 - Step 5: Solve for x
x = 119,547,318,053.02/398,611.24 - Step 6: Final answer
x = 299,909.55
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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.