Finding the Fourth Proportional to 305,342.64, 421,423.24 and 169,420.32
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Solution
The fourth proportional to 305,342.64, 421,423.24 and 169,420.32 is: 233,828.00
Step by Step Solution
- Step 1: Write the proportion equation
305,342.64 : 421,423.24 = 169,420.32 : x - Step 2: Convert to fraction form
305,342.64/421,423.24 = 169,420.32/x - Step 3: Cross multiply
305,342.64x = 421,423.24 × 169,420.32 - Step 4: Simplify right side
305,342.64x = 71,397,660,176.24 - Step 5: Solve for x
x = 71,397,660,176.24/305,342.64 - Step 6: Final answer
x = 233,828.00
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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.