Finding the Fourth Proportional to 320,907.68, 442,856.08 and 177,670.08
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Solution
The fourth proportional to 320,907.68, 442,856.08 and 177,670.08 is: 245,186.64
Step by Step Solution
- Step 1: Write the proportion equation
320,907.68 : 442,856.08 = 177,670.08 : x - Step 2: Convert to fraction form
320,907.68/442,856.08 = 177,670.08/x - Step 3: Cross multiply
320,907.68x = 442,856.08 × 177,670.08 - Step 4: Simplify right side
320,907.68x = 78,682,275,162.09 - Step 5: Solve for x
x = 78,682,275,162.09/320,907.68 - Step 6: Final answer
x = 245,186.64
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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.