Finding the Fourth Proportional to 299,744.21, 449,557.97 and 86,497.13
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Solution
The fourth proportional to 299,744.21, 449,557.97 and 86,497.13 is: 129,728.86
Step by Step Solution
- Step 1: Write the proportion equation
299,744.21 : 449,557.97 = 86,497.13 : x - Step 2: Convert to fraction form
299,744.21/449,557.97 = 86,497.13/x - Step 3: Cross multiply
299,744.21x = 449,557.97 × 86,497.13 - Step 4: Simplify right side
299,744.21x = 38,885,474,865.04 - Step 5: Solve for x
x = 38,885,474,865.04/299,744.21 - Step 6: Final answer
x = 129,728.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.