Finding the Fourth Proportional to 320,305.76, 442,021.92 and 175,112.08
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Solution
The fourth proportional to 320,305.76, 442,021.92 and 175,112.08 is: 241,654.65
Step by Step Solution
- Step 1: Write the proportion equation
320,305.76 : 442,021.92 = 175,112.08 : x - Step 2: Convert to fraction form
320,305.76/442,021.92 = 175,112.08/x - Step 3: Cross multiply
320,305.76x = 442,021.92 × 175,112.08 - Step 4: Simplify right side
320,305.76x = 77,403,377,816.79 - Step 5: Solve for x
x = 77,403,377,816.79/320,305.76 - Step 6: Final answer
x = 241,654.65
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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.