Finding the Fourth Proportional to 403,133.47, 556,338.97 and 221,859.19
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Solution
The fourth proportional to 403,133.47, 556,338.97 and 221,859.19 is: 306,173.82
Step by Step Solution
- Step 1: Write the proportion equation
403,133.47 : 556,338.97 = 221,859.19 : x - Step 2: Convert to fraction form
403,133.47/556,338.97 = 221,859.19/x - Step 3: Cross multiply
403,133.47x = 556,338.97 × 221,859.19 - Step 4: Simplify right side
403,133.47x = 123,428,913,128.04 - Step 5: Solve for x
x = 123,428,913,128.04/403,133.47 - Step 6: Final answer
x = 306,173.82
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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.