Finding the Fourth Proportional to 305,682.99, 458,615.61 and 145,878.90
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Solution
The fourth proportional to 305,682.99, 458,615.61 and 145,878.90 is: 218,861.84
Step by Step Solution
- Step 1: Write the proportion equation
305,682.99 : 458,615.61 = 145,878.90 : x - Step 2: Convert to fraction form
305,682.99/458,615.61 = 145,878.90/x - Step 3: Cross multiply
305,682.99x = 458,615.61 × 145,878.90 - Step 4: Simplify right side
305,682.99x = 66,902,340,709.63 - Step 5: Solve for x
x = 66,902,340,709.63/305,682.99 - Step 6: Final answer
x = 218,861.84
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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.