Finding the Fourth Proportional to 403,006.97, 556,149.60 and 221,715.02
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Solution
The fourth proportional to 403,006.97, 556,149.60 and 221,715.02 is: 305,966.71
Step by Step Solution
- Step 1: Write the proportion equation
403,006.97 : 556,149.60 = 221,715.02 : x - Step 2: Convert to fraction form
403,006.97/556,149.60 = 221,715.02/x - Step 3: Cross multiply
403,006.97x = 556,149.60 × 221,715.02 - Step 4: Simplify right side
403,006.97x = 123,306,716,906.24 - Step 5: Solve for x
x = 123,306,716,906.24/403,006.97 - Step 6: Final answer
x = 305,966.71
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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.