Finding the Fourth Proportional to 376,880.82, 520,115.45 and 213,568.99
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Solution
The fourth proportional to 376,880.82, 520,115.45 and 213,568.99 is: 294,736.49
Step by Step Solution
- Step 1: Write the proportion equation
376,880.82 : 520,115.45 = 213,568.99 : x - Step 2: Convert to fraction form
376,880.82/520,115.45 = 213,568.99/x - Step 3: Cross multiply
376,880.82x = 520,115.45 × 213,568.99 - Step 4: Simplify right side
376,880.82x = 111,080,528,971.76 - Step 5: Solve for x
x = 111,080,528,971.76/376,880.82 - Step 6: Final answer
x = 294,736.49
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1.5x scale
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.