Finding the Fourth Proportional to 299,691.26, 449,566.95 and 86,464.45
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Solution
The fourth proportional to 299,691.26, 449,566.95 and 86,464.45 is: 129,705.35
Step by Step Solution
- Step 1: Write the proportion equation
299,691.26 : 449,566.95 = 86,464.45 : x - Step 2: Convert to fraction form
299,691.26/449,566.95 = 86,464.45/x - Step 3: Cross multiply
299,691.26x = 449,566.95 × 86,464.45 - Step 4: Simplify right side
299,691.26x = 38,871,559,956.13 - Step 5: Solve for x
x = 38,871,559,956.13/299,691.26 - Step 6: Final answer
x = 129,705.35
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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.