Finding the Fourth Proportional to 409,626.96, 614,440.44 and 129,166.08
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Solution
The fourth proportional to 409,626.96, 614,440.44 and 129,166.08 is: 193,749.12
Step by Step Solution
- Step 1: Write the proportion equation
409,626.96 : 614,440.44 = 129,166.08 : x - Step 2: Convert to fraction form
409,626.96/614,440.44 = 129,166.08/x - Step 3: Cross multiply
409,626.96x = 614,440.44 × 129,166.08 - Step 4: Simplify right side
409,626.96x = 79,364,863,028.28 - Step 5: Solve for x
x = 79,364,863,028.28/409,626.96 - Step 6: Final answer
x = 193,749.12
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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.