Finding the Fourth Proportional to 403,004.63, 556,146.36 and 221,712.68
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Solution
The fourth proportional to 403,004.63, 556,146.36 and 221,712.68 is: 305,963.48
Step by Step Solution
- Step 1: Write the proportion equation
403,004.63 : 556,146.36 = 221,712.68 : x - Step 2: Convert to fraction form
403,004.63/556,146.36 = 221,712.68/x - Step 3: Cross multiply
403,004.63x = 556,146.36 × 221,712.68 - Step 4: Simplify right side
403,004.63x = 123,304,699,947.85 - Step 5: Solve for x
x = 123,304,699,947.85/403,004.63 - Step 6: Final answer
x = 305,963.48
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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.