Finding the Fourth Proportional to 320,423.93, 442,187.87 and 177,193.65
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Solution
The fourth proportional to 320,423.93, 442,187.87 and 177,193.65 is: 244,528.81
Step by Step Solution
- Step 1: Write the proportion equation
320,423.93 : 442,187.87 = 177,193.65 : x - Step 2: Convert to fraction form
320,423.93/442,187.87 = 177,193.65/x - Step 3: Cross multiply
320,423.93x = 442,187.87 × 177,193.65 - Step 4: Simplify right side
320,423.93x = 78,352,881,785.06 - Step 5: Solve for x
x = 78,352,881,785.06/320,423.93 - Step 6: Final answer
x = 244,528.81
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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.