Finding the Fourth Proportional to 409,816.48, 614,759.28 and 129,350.56
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Solution
The fourth proportional to 409,816.48, 614,759.28 and 129,350.56 is: 194,036.75
Step by Step Solution
- Step 1: Write the proportion equation
409,816.48 : 614,759.28 = 129,350.56 : x - Step 2: Convert to fraction form
409,816.48/614,759.28 = 129,350.56/x - Step 3: Cross multiply
409,816.48x = 614,759.28 × 129,350.56 - Step 4: Simplify right side
409,816.48x = 79,519,457,133.20 - Step 5: Solve for x
x = 79,519,457,133.20/409,816.48 - Step 6: Final answer
x = 194,036.75
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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.