Finding the Fourth Proportional to 303,358.91, 418,634.80 and 167,392.75
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Solution
The fourth proportional to 303,358.91, 418,634.80 and 167,392.75 is: 231,001.72
Step by Step Solution
- Step 1: Write the proportion equation
303,358.91 : 418,634.80 = 167,392.75 : x - Step 2: Convert to fraction form
303,358.91/418,634.80 = 167,392.75/x - Step 3: Cross multiply
303,358.91x = 418,634.80 × 167,392.75 - Step 4: Simplify right side
303,358.91x = 70,076,430,417.70 - Step 5: Solve for x
x = 70,076,430,417.70/303,358.91 - Step 6: Final answer
x = 231,001.72
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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.