Finding the Fourth Proportional to 305,133.24, 421,108.71 and 169,209.75
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Solution
The fourth proportional to 305,133.24, 421,108.71 and 169,209.75 is: 233,523.23
Step by Step Solution
- Step 1: Write the proportion equation
305,133.24 : 421,108.71 = 169,209.75 : x - Step 2: Convert to fraction form
305,133.24/421,108.71 = 169,209.75/x - Step 3: Cross multiply
305,133.24x = 421,108.71 × 169,209.75 - Step 4: Simplify right side
305,133.24x = 71,255,699,541.92 - Step 5: Solve for x
x = 71,255,699,541.92/305,133.24 - Step 6: Final answer
x = 233,523.23
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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.