Finding the Fourth Proportional to 320,935.65, 442,905.05 and 177,695.70
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Solution
The fourth proportional to 320,935.65, 442,905.05 and 177,695.70 is: 245,227.73
Step by Step Solution
- Step 1: Write the proportion equation
320,935.65 : 442,905.05 = 177,695.70 : x - Step 2: Convert to fraction form
320,935.65/442,905.05 = 177,695.70/x - Step 3: Cross multiply
320,935.65x = 442,905.05 × 177,695.70 - Step 4: Simplify right side
320,935.65x = 78,702,322,004.81 - Step 5: Solve for x
x = 78,702,322,004.81/320,935.65 - Step 6: Final answer
x = 245,227.73
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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.