Finding the Fourth Proportional to 320,548.49, 442,329.36 and 177,272.87
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Solution
The fourth proportional to 320,548.49, 442,329.36 and 177,272.87 is: 244,621.32
Step by Step Solution
- Step 1: Write the proportion equation
320,548.49 : 442,329.36 = 177,272.87 : x - Step 2: Convert to fraction form
320,548.49/442,329.36 = 177,272.87/x - Step 3: Cross multiply
320,548.49x = 442,329.36 × 177,272.87 - Step 4: Simplify right side
320,548.49x = 78,412,995,132.46 - Step 5: Solve for x
x = 78,412,995,132.46/320,548.49 - Step 6: Final answer
x = 244,621.32
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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.