Finding the Fourth Proportional to 305,617.66, 421,748.67 and 169,652.68
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Solution
The fourth proportional to 305,617.66, 421,748.67 and 169,652.68 is: 234,118.64
Step by Step Solution
- Step 1: Write the proportion equation
305,617.66 : 421,748.67 = 169,652.68 : x - Step 2: Convert to fraction form
305,617.66/421,748.67 = 169,652.68/x - Step 3: Cross multiply
305,617.66x = 421,748.67 × 169,652.68 - Step 4: Simplify right side
305,617.66x = 71,550,791,733.76 - Step 5: Solve for x
x = 71,550,791,733.76/305,617.66 - Step 6: Final answer
x = 234,118.64
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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.