Finding the Fourth Proportional to 320,913.68, 442,864.36 and 177,676.08
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Solution
The fourth proportional to 320,913.68, 442,864.36 and 177,676.08 is: 245,194.92
Step by Step Solution
- Step 1: Write the proportion equation
320,913.68 : 442,864.36 = 177,676.08 : x - Step 2: Convert to fraction form
320,913.68/442,864.36 = 177,676.08/x - Step 3: Cross multiply
320,913.68x = 442,864.36 × 177,676.08 - Step 4: Simplify right side
320,913.68x = 78,686,403,456.51 - Step 5: Solve for x
x = 78,686,403,456.51/320,913.68 - Step 6: Final answer
x = 245,194.92
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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.