Finding the Fourth Proportional to 320,937.65, 442,907.81 and 177,697.70
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Solution
The fourth proportional to 320,937.65, 442,907.81 and 177,697.70 is: 245,230.49
Step by Step Solution
- Step 1: Write the proportion equation
320,937.65 : 442,907.81 = 177,697.70 : x - Step 2: Convert to fraction form
320,937.65/442,907.81 = 177,697.70/x - Step 3: Cross multiply
320,937.65x = 442,907.81 × 177,697.70 - Step 4: Simplify right side
320,937.65x = 78,703,698,260.55 - Step 5: Solve for x
x = 78,703,698,260.55/320,937.65 - Step 6: Final answer
x = 245,230.49
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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.