Finding the Fourth Proportional to 371,712.87, 512,953.79 and 218,760.08
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Solution
The fourth proportional to 371,712.87, 512,953.79 and 218,760.08 is: 301,883.03
Step by Step Solution
- Step 1: Write the proportion equation
371,712.87 : 512,953.79 = 218,760.08 : x - Step 2: Convert to fraction form
371,712.87/512,953.79 = 218,760.08/x - Step 3: Cross multiply
371,712.87x = 512,953.79 × 218,760.08 - Step 4: Simplify right side
371,712.87x = 112,213,808,478.13 - Step 5: Solve for x
x = 112,213,808,478.13/371,712.87 - Step 6: Final answer
x = 301,883.03
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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.