Finding the Fourth Proportional to 223,735.94, 308,769.38 and 128,256.99
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Solution
The fourth proportional to 223,735.94, 308,769.38 and 128,256.99 is: 177,002.54
Step by Step Solution
- Step 1: Write the proportion equation
223,735.94 : 308,769.38 = 128,256.99 : x - Step 2: Convert to fraction form
223,735.94/308,769.38 = 128,256.99/x - Step 3: Cross multiply
223,735.94x = 308,769.38 × 128,256.99 - Step 4: Simplify right side
223,735.94x = 39,601,831,122.65 - Step 5: Solve for x
x = 39,601,831,122.65/223,735.94 - Step 6: Final answer
x = 177,002.54
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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.