Finding the Fourth Proportional to 409,672.96, 614,509.44 and 129,212.08
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Solution
The fourth proportional to 409,672.96, 614,509.44 and 129,212.08 is: 193,818.12
Step by Step Solution
- Step 1: Write the proportion equation
409,672.96 : 614,509.44 = 129,212.08 : x - Step 2: Convert to fraction form
409,672.96/614,509.44 = 129,212.08/x - Step 3: Cross multiply
409,672.96x = 614,509.44 × 129,212.08 - Step 4: Simplify right side
409,672.96x = 79,402,042,922.04 - Step 5: Solve for x
x = 79,402,042,922.04/409,672.96 - Step 6: Final answer
x = 193,818.12
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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.