Finding the Fourth Proportional to 306,236.81, 459,354.18 and 78,532.18
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Solution
The fourth proportional to 306,236.81, 459,354.18 and 78,532.18 is: 117,798.00
Step by Step Solution
- Step 1: Write the proportion equation
306,236.81 : 459,354.18 = 78,532.18 : x - Step 2: Convert to fraction form
306,236.81/459,354.18 = 78,532.18/x - Step 3: Cross multiply
306,236.81x = 459,354.18 × 78,532.18 - Step 4: Simplify right side
306,236.81x = 36,074,083,999.13 - Step 5: Solve for x
x = 36,074,083,999.13/306,236.81 - Step 6: Final answer
x = 117,798.00
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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.