Finding the Fourth Proportional to 305,721.84, 421,890.22 and 169,748.76
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Solution
The fourth proportional to 305,721.84, 421,890.22 and 169,748.76 is: 234,250.00
Step by Step Solution
- Step 1: Write the proportion equation
305,721.84 : 421,890.22 = 169,748.76 : x - Step 2: Convert to fraction form
305,721.84/421,890.22 = 169,748.76/x - Step 3: Cross multiply
305,721.84x = 421,890.22 × 169,748.76 - Step 4: Simplify right side
305,721.84x = 71,615,341,701.13 - Step 5: Solve for x
x = 71,615,341,701.13/305,721.84 - Step 6: Final answer
x = 234,250.00
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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.