Finding the Fourth Proportional to 395,258.76, 545,453.87 and 213,966.99
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Solution
The fourth proportional to 395,258.76, 545,453.87 and 213,966.99 is: 295,272.70
Step by Step Solution
- Step 1: Write the proportion equation
395,258.76 : 545,453.87 = 213,966.99 : x - Step 2: Convert to fraction form
395,258.76/545,453.87 = 213,966.99/x - Step 3: Cross multiply
395,258.76x = 545,453.87 × 213,966.99 - Step 4: Simplify right side
395,258.76x = 116,709,121,677.92 - Step 5: Solve for x
x = 116,709,121,677.92/395,258.76 - Step 6: Final answer
x = 295,272.70
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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.