Finding the Fourth Proportional to 305,319.78, 421,354.71 and 169,344.68
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Solution
The fourth proportional to 305,319.78, 421,354.71 and 169,344.68 is: 233,703.09
Step by Step Solution
- Step 1: Write the proportion equation
305,319.78 : 421,354.71 = 169,344.68 : x - Step 2: Convert to fraction form
305,319.78/421,354.71 = 169,344.68/x - Step 3: Cross multiply
305,319.78x = 421,354.71 × 169,344.68 - Step 4: Simplify right side
305,319.78x = 71,354,176,424.67 - Step 5: Solve for x
x = 71,354,176,424.67/305,319.78 - Step 6: Final answer
x = 233,703.09
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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.