Finding the Fourth Proportional to 756,128.94, 1,134,193.42 and 223,608.50
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Solution
The fourth proportional to 756,128.94, 1,134,193.42 and 223,608.50 is: 335,412.75
Step by Step Solution
- Step 1: Write the proportion equation
756,128.94 : 1,134,193.42 = 223,608.50 : x - Step 2: Convert to fraction form
756,128.94/1,134,193.42 = 223,608.50/x - Step 3: Cross multiply
756,128.94x = 1,134,193.42 × 223,608.50 - Step 4: Simplify right side
756,128.94x = 253,615,289,356.07 - Step 5: Solve for x
x = 253,615,289,356.07/756,128.94 - Step 6: Final answer
x = 335,412.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.