Finding the Fourth Proportional to 305,614.68, 458,515.88 and 145,894.44
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Solution
The fourth proportional to 305,614.68, 458,515.88 and 145,894.44 is: 218,886.47
Step by Step Solution
- Step 1: Write the proportion equation
305,614.68 : 458,515.88 = 145,894.44 : x - Step 2: Convert to fraction form
305,614.68/458,515.88 = 145,894.44/x - Step 3: Cross multiply
305,614.68x = 458,515.88 × 145,894.44 - Step 4: Simplify right side
305,614.68x = 66,894,917,543.71 - Step 5: Solve for x
x = 66,894,917,543.71/305,614.68 - Step 6: Final answer
x = 218,886.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.