Finding the Fourth Proportional to 217,472.94, 300,122.28 and 121,988.52
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Solution
The fourth proportional to 217,472.94, 300,122.28 and 121,988.52 is: 168,349.56
Step by Step Solution
- Step 1: Write the proportion equation
217,472.94 : 300,122.28 = 121,988.52 : x - Step 2: Convert to fraction form
217,472.94/300,122.28 = 121,988.52/x - Step 3: Cross multiply
217,472.94x = 300,122.28 × 121,988.52 - Step 4: Simplify right side
217,472.94x = 36,611,472,756.23 - Step 5: Solve for x
x = 36,611,472,756.23/217,472.94 - Step 6: Final answer
x = 168,349.56
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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.