Finding the Fourth Proportional to 217,905.64, 300,772.26 and 131,864.68
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Solution
The fourth proportional to 217,905.64, 300,772.26 and 131,864.68 is: 182,011.07
Step by Step Solution
- Step 1: Write the proportion equation
217,905.64 : 300,772.26 = 131,864.68 : x - Step 2: Convert to fraction form
217,905.64/300,772.26 = 131,864.68/x - Step 3: Cross multiply
217,905.64x = 300,772.26 × 131,864.68 - Step 4: Simplify right side
217,905.64x = 39,661,237,817.78 - Step 5: Solve for x
x = 39,661,237,817.78/217,905.64 - Step 6: Final answer
x = 182,011.07
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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.