Finding the Fourth Proportional to 403,005.63, 556,147.74 and 221,713.68
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Solution
The fourth proportional to 403,005.63, 556,147.74 and 221,713.68 is: 305,964.86
Step by Step Solution
- Step 1: Write the proportion equation
403,005.63 : 556,147.74 = 221,713.68 : x - Step 2: Convert to fraction form
403,005.63/556,147.74 = 221,713.68/x - Step 3: Cross multiply
403,005.63x = 556,147.74 × 221,713.68 - Step 4: Simplify right side
403,005.63x = 123,305,562,059.08 - Step 5: Solve for x
x = 123,305,562,059.08/403,005.63 - Step 6: Final answer
x = 305,964.86
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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.