Finding the Fourth Proportional to 448,377.13, 618,729.45 and 252,172.99
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Solution
The fourth proportional to 448,377.13, 618,729.45 and 252,172.99 is: 347,981.29
Step by Step Solution
- Step 1: Write the proportion equation
448,377.13 : 618,729.45 = 252,172.99 : x - Step 2: Convert to fraction form
448,377.13/618,729.45 = 252,172.99/x - Step 3: Cross multiply
448,377.13x = 618,729.45 × 252,172.99 - Step 4: Simplify right side
448,377.13x = 156,026,852,313.91 - Step 5: Solve for x
x = 156,026,852,313.91/448,377.13 - Step 6: Final answer
x = 347,981.29
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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.