Finding the Fourth Proportional to 409,958.60, 614,954.36 and 129,475.92
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Solution
The fourth proportional to 409,958.60, 614,954.36 and 129,475.92 is: 194,219.08
Step by Step Solution
- Step 1: Write the proportion equation
409,958.60 : 614,954.36 = 129,475.92 : x - Step 2: Convert to fraction form
409,958.60/614,954.36 = 129,475.92/x - Step 3: Cross multiply
409,958.60x = 614,954.36 × 129,475.92 - Step 4: Simplify right side
409,958.60x = 79,621,781,519.01 - Step 5: Solve for x
x = 79,621,781,519.01/409,958.60 - Step 6: Final answer
x = 194,219.08
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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.