Finding the Fourth Proportional to 310,459.53, 465,299.74 and 132,757.58
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Solution
The fourth proportional to 310,459.53, 465,299.74 and 132,757.58 is: 198,969.79
Step by Step Solution
- Step 1: Write the proportion equation
310,459.53 : 465,299.74 = 132,757.58 : x - Step 2: Convert to fraction form
310,459.53/465,299.74 = 132,757.58/x - Step 3: Cross multiply
310,459.53x = 465,299.74 × 132,757.58 - Step 4: Simplify right side
310,459.53x = 61,772,068,786.23 - Step 5: Solve for x
x = 61,772,068,786.23/310,459.53 - Step 6: Final answer
x = 198,969.79
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1.5x scale
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.