Finding the Fourth Proportional to 379,473.12, 523,683.74 and 207,400.64
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Solution
The fourth proportional to 379,473.12, 523,683.74 and 207,400.64 is: 286,218.80
Step by Step Solution
- Step 1: Write the proportion equation
379,473.12 : 523,683.74 = 207,400.64 : x - Step 2: Convert to fraction form
379,473.12/523,683.74 = 207,400.64/x - Step 3: Cross multiply
379,473.12x = 523,683.74 × 207,400.64 - Step 4: Simplify right side
379,473.12x = 108,612,340,733.68 - Step 5: Solve for x
x = 108,612,340,733.68/379,473.12 - Step 6: Final answer
x = 286,218.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.