Finding the Fourth Proportional to 331,722.18, 457,769.61 and 202,616.28
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Solution
The fourth proportional to 331,722.18, 457,769.61 and 202,616.28 is: 279,606.19
Step by Step Solution
- Step 1: Write the proportion equation
331,722.18 : 457,769.61 = 202,616.28 : x - Step 2: Convert to fraction form
331,722.18/457,769.61 = 202,616.28/x - Step 3: Cross multiply
331,722.18x = 457,769.61 × 202,616.28 - Step 4: Simplify right side
331,722.18x = 92,751,575,475.25 - Step 5: Solve for x
x = 92,751,575,475.25/331,722.18 - Step 6: Final answer
x = 279,606.19
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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.